<prompt> Human: EDIT: Solved! I had a very small amount of money in a retirement account from a job I quit a year ago, and they sent me a form a few months back to have a check sent or have it direct deposited. Evidently they operate through this other company, making the descriptor completely foreign. Now a new question: Does this money need to be put in another retirement account to avoid penalties?So I have a couple different companies and individuals authorized to direct deposit to me, but the descriptor for this one was not one I recognize. All it says is TSS LLC MO PN DIST account number and under customer name, it has my name. However, the account number that it has listed is not my checking account number or any other account that I have. I called my bank, and they said that its a limited liability company ? and if it was an accidental deposit it would probably come out within 3 business days, so I should give it a week. Its been almost a week now. Im concerned because 1 It was a DD, and I was under the impression those had to be authorized and 2 I dont know what MO PN DIST means, but it almost looks like Monthly Payment Distribution or something. I have no idea why I would be getting monthly payments from a liability company. Anyone have any ideas?Assistant: I might empty that account except for this money. Just in case they try to take out more money than just the reversal.Human: What mechanism would allow them to take out more than the reversal?Assistant: An ACH wire transferHuman: What the hell does ACH even mean? I finally got a hold of the company, and he asked me if it was an ACH and I told him I didnt know, and he just kept saying he had to know and I had to tell him. I finally said that my bank rep said the acronym ACH, so maybe? He was rude about it.  <response>: Automated clearing house. One of the two main methods banks use to send money to each other. The other is a old fashioned wire transfer western union for exampleThis is also the method companies use to allow you to pay online or by phone out of your checking account. Edit: also eChecks can move money, basically just digital versions of paper checks. 