Be aware that the address of 520 W. Arapaho Rd, Suite 150, in Richardson, TX is an vacant address.  I just mailed my machine back to this address as it was the address on the paperwork I received.  The package it marked vacant by the postal worker.  
I did call the 800 number and was told that this is the wrong address and I am very upset to how I was treated over the phone.  I proceeded to cancel my account with them as I tried to do this several months ago.  My bank is now applying "stop Payments" they are trying to make from my account.  
I would suggest that no one does business with this company.. I tried to let them know that this is a problem and I thought I would also let them know of the issue with the address.  I basically was treated as if I was the person in the wrong.  I am repacking the package and keeping it for any further actions in case they try to cause more problems.
Good luck.. with this company.

Called and wanted to come to our place of business to explain our interest rate increase on our visa card...which we do not even have. Major scam!!!! When we tried calling this number back the line was not even in service.

Got call didn't answer and no message left. Googled to this site. I have no credit cards.

sales call

818450-5618 please help lets practice swift justice here!

unininvited with no call back option. smells unethical fishy; scam?

I love it when they call when  I have the privacy to turn it around on them. As disgusting and perverted as I get them you would think they would flag my number and not call me anymore.

Called and asked for our CEO by name.  Had to put them on hold to answer 3 more incoming calls.  They hung up.

My office keeps getting calls from this number with a caller ID of Merchant Services. They want to speak to the owner about credit card & debit process machines which I have informed every person who calls that we don't even accept these types of payments!!!!!  The last two times they have called, although I have been very polite in the matter, the reps hung up on me immediately! How rude and what a waste of my time - TAKE MY DAMN NUMBER OFF YOU CALLING SYSTEM!!!!!!

National Do not Call Registry; 888 382 1222

you can complain but it doesn't help

Called 3/11/10 at 8:45 am
Called 3/22/10 at 5:06 pm and again at 5:07 pm when I told them I was driving, couldn't talk and hung up.
Called 3/24/10 at 9:07 am

All calls to a company mobile phone, never leave a message. The caller is invariably aggressive, rude  and is selling merchant services.

I called this number 818-450-5618 and got a voice mail for a Infotel Voice Mail system... I went through this system and got some guy named Christohper Smith's voice mail box.  I left him a nasty message because I don't like getting calls from this number, asking for my boss (by name) and when I tell you he's on the other line getting HUNG UP on (darn that hurts the ear).  So in "good faith" I will keep calling back and bug them too.  I can play and my number is a "place of business".  My boss does not know these people nor number.  Looks like I get some fun.  Just know people, I'll call you back I have ALL DAY and I hope if I bug them they will quit bugging the rest of you.  It only takes ONE.

Calls everyday at 1 pm.....sales call.  Report harassment to BBB

we are on the no call list.. they keep calling, are very rude

Please remove my phone number 843-991-5333
                 from your call list. Thanks

Phoned with this fictional 'rate increase' crap.  Told them I had no desire to change merchant service co's.  The guy kept on.  I told him 'No...don't call back'.  He kept talking.  I told him I had a customer with me and would not talk further.  What a**es!!!!!    I'd never do business with someone like this.  It showed up, by the way, as MerchantSvcs.

Julie - I phoned them too and left a biting message and told them I'd hound them the way they've hounded me and waste their time just like they waste mine.   I told them that their name was mud on the internet and that no one in their right mind would do business with them.   I told them to remove my name.

"Merchant Services" is not a name, but rather a description.  
Many credit card processors offer gift card services, Point of Sale systems, check guarantee, electricity and accounting services.  By definition, this would mean that they offer "Services" to "Merchants".

And for those who don't know, here's a couple of issues....
Caller ID is worthless.  It can be spoofed, manufactured, faked and blocked.  If you have ISDN PRI lines, you program it to say whatever you want.  Alot of people think that it's set by the phone company to display the owner of the account.  In the corporate world, this is not true 80-90% of the time.

There is not National Do Not Call Registry for "Business to Business" calls.  The Registry protects consumers only.  Most companies will add you to an internal DNC list if you ask.

The BBB handles consumer complaints.
If a business is calling your business as a soliciation, you should answer the phone and tell them that you aren't interested.  Would you believe that the caller cannot read your mind?  
What you described is not harrassment and if it was, the BBB doesn't handle harassment cases.  If I were you, I'd dial 911

Received a call asking for my VP (had his name), then proceeded to ask for the co-owner.  I asked her name and she replied Shannon and then I asked the company and she hung up.  I placed a call trace (*57) on this phone number!

Keeps calling to explain interest rate increase.  Have told them to remove my name from their list and that we are on the do not cal list.  Seems that does not matter.

These people have been calling me almost 10 times a day for this nonsense.

Tried calling this number back. Finally it connected to a voice mail box. I left a message hoping they will remove me from their calling list.

Keeps calling and never leaves a message. I tried to call back and it just kept ringing and ringing.

Got a call from this phone number on our company's cell phone.  When I answered saying our company's name, the call immediately ended with response from the other end.  I immediately called back, wanting to kow who called but the phone just rang and rang for about 15 times until a recorded message stated" no one is availalbe to answer your call" and then disconnected the call.

call me for merchant credit card processing, schedule appointment, no one show up

Been calling asking for me by name everyday. Receptionist keeps telling them I'm not here. My partner took a call from them. We had just changed our processor for credit cards and thought this was something to do with that. He wanted to save us money on our processing. My partner told him we just changed and had a good deal. The caller became real rude and said she was not listening to him so she hung up. That was yesterday. They called back today and we hung up.

They call everyday like clockwork. I've asked them multiple times to remove our name from their calling list as we are registered on the DNC list. They just get rude and hang up only to call back a little later or the next day.

I just hung up the phone with the prodigy payment systems operator (Alyssa). She was very helpful in removing our name and number from their lists, and also agreed to look in to the rudeness of their salesmen when calling. While I highly doubt that will happen, at least she took us off of the list.