I think what is happening here is people putting down random phone numbers when they order 'gold' from SusanExpress.  They do call when you make your first order to confirm that it is legitimate and when they have a bogus number to call, well it's annoying and inconvenient to the callee.

This number is from customer service for a website called Susanexpress.com

Kids buy gold off that website for use in game.

Once you ordered they call within minutes if its there business hours. Usually companies like this form out in the eastern countries ex, china.

They probably use skype, get a Washington DC number but are calling from china.

And its also possible that this was an old skype number that called and did pranks, then recycled it to susan express.

Called my home at 02:16 A.M. Never spoke. When I called back, it was busy. I waited and called them back during the day, still busy. I know that the 202 area code is Washington DC, but the zhz_sw is a Chinese connection. They've only called once, but if it happens again, I will report them to the PUC.

this lady susan express called my house at 2 in the freakin morning! i was like what the heck are you doing calling me at 2 in the freakin morning? you just woke my kids up! thanks b. seriously? come on.

this person has called once before. i dont know what scam they were using this time, but last time it was chimney cleaning. we havent used our chimney or had it cleaned since i was born! this time they just hung up when i answered. i hope they stop calling soon. its not like they are going to get anything out of me.

Don't know who it is but they call and call and call. . . and they start at 9:30 PM

John is right. This is Susan Express. One of the placed on line to buy gaming gold

They called at 9:10pm last night, I hung up on them. They called back right after, it woke my baby. They called at 4:25 am woke my baby again. I'm very upset, they called this morning at 8:22