Same thing.  I went to my bank to confirm everything was o.k.  If I had an issue, they would have contacted me directly.  I had them listen to the voicemail I received and they took the phone numbers and said they would attempt to pursue by reporting it to their fraud department.  I also called back tha 844 number and when they answered, I said they had the wrong persons name they had referenced.  They then asked me for my phone number.  I asked if they could see the number on their phone/display.  The person said they didn't have time for games and hung up.  I blocked their number.  If received more calls, will attempt to escalate a little more aggressively.

For Extortion Scam Operations,  File reports with the FBI, your state attorney general and Department Of Justice,CFB,FTC & FCC..

http://www.nw3c.org/
http://www.ic3.gov/default.aspx
http://www.fbi.gov/
http://www.stopfraud.gov/report.html
https://www.ftccomplaintassistant.gov/#&panel1-1
https://esupport.fcc.gov/ccmsforms/form1088.action
http://www.consumerfinance.gov/complaint/
http://www.fraud.org/

Also read up on the laws and your rights:

http://800notes.com/arts/Jb8EW-eDhQA/harassin ... ou-need-to-know
See Residents post here also:
http://800notes.com/forum/ta-34af6a034ba34b6/unending-collection-calls
Templates of Letters:
http://800notes.com/Phone.aspx/1-319-242-7350

http://www.ftc.gov/os/statutes/fdcpajump.shtm
http://www.consumerfinance.gov/askcfpb/search ...
http://www.consumer.ftc.gov/articles/pdf-0096-fair-credit-reporting-act.pdf
http://www.consumer.ftc.gov/articles/0149-debt-collection

And see:

http://800notes.com/forum/ta-944ec1426a8bcbb/ ... service-attacks
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http://www.clarkhoward.com/news/clark-howard/ ... r-phones/ndF4c/
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http://www.net-security.org/article.php?id=1828
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http://800notes.com/forum/ta-86217073a9c8dad/ ... 077595690349410
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http://www.consumer.ftc.gov/articles/0258-fake-debt-collectors
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http://www.deadiversion.usdoj.gov/pubs/pressreleases/extortion_scam.htm
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http://www.fdcpa.me/fake-process-server-injunction/
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http://800notes.com/forum/ta-9413b3202bc8b6c/ ... net%27s-tactics
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http://dfi.wa.gov/consumers/alerts/cashnet-payday.htm
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http://www.cashnetusa.com/consumer-notices
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http://800notes.com/forum/ta-4f7d326029dcf9d/ ... lectors-finally

The same thing just happened to me . A familly member called to alert me that midway mediation services was calling leaving detailed messages about sending a sherriff out,check fraud etc..... Calling a number that I have lived in over 20 yrs. The left a different contact number than the above 844-291-3304 but the same company.

My mother received a call from a different number asking for me. She called me and gave me the info. I called the number and the "company" was midway mediation services. No one answered so left a basic voicemail. Got a call back this morning from this number (supposedly the same company though) from a guy named Brandon Callahan telling me I had a bank of America account I committed fraud on and threatened prison time unless I paid almost 4000 to them. I have never had an account with bank of America. I told him to send me paperwork and he requested I get it via email. I said nope certified mail! He got huffy and said OK. I called the courts with the "docket number" he gave me and the lady laughed and said it's definitely a scam call the police and make a report.

Received a call from this company (they actually left a voicemail). Said his name was "Jack Roberts" and that he was calling regarding allegations of check fraud through Wells Fargo (A. I don't have a Wells Fargo account; B. I don't use checks and C. I'm not a fraud). He said he was going to have to send a "process server and sheriff" to my home and place of business, but first to place of business so my boss could be an "eye witness".

I called back and confirmed the ABCs from above. I said I welcomed the paperwork and would be home when they showed up (they'll never send anybody). I told him if he is trying to collect a debt, he is violating state laws and did so on a voicemail. He said they aren't a collection agency and that they are with the State of California. When I asked what department/agency, he said "Well that's not important since you're not going to cooperate. Good luck to you."

I also called Wells Fargo who has no idea who these guys are and no record of me associated with ANY fraud.