<prompt> Human: Hi reddit, I received an unexpected check today for a considerable sum of money a bit over 1K. The logo on the envelope and on the check shows its from a healthcare company that runs several hospitals in the area where I live, where Ive received some treatment in the past, the most notable of which was an outpatient surgery in 2016. No explanation was included as to why Im suddenly receiving this check. Several things to consider: x200B;- The check has an invoice number and date from about a month ago. I definitely havent received any care from this company in that time. - The sheet of paper that the check is attached to is made out to my old address. However, the envelope has my current address, handwritten on it. Ive moved in the time since Ive last had any interactions with this company, so it makes sense that they sent it first to my old address if it is actually legit. - The check itself looks like one I once actually did received from this company a long time ago when they overbilled me. - The phone number, etc. on the envelopecheck matches the real company phone number from the companys website. x200B;Im not depositing it for now until I can get some kind of confirmation from the company. Have yall run into situations like this before? Is there any chance this is legit from something they overbilled me for ages ago? Should I take any steps other than waiting to call the company tomorrow?  <response>: Call the companys billing department and reference the check number. They will be able to tell you 