Then if you are smart you can setup account with them, let's see where's the money goes to,
when i did setup my own MID i was getting forms from the bank itself to sign or at least i got some forms with the company name to sign with , instead of .doc without any company information who i deal with.
also i got my own descriptor , so when someone telling me you will get your own MID with some "generic descriptor" then it will be his shared MID .
and the fact that he didn't response to my last message anymore for me it show that its︀ big potential for scam.