Anyone receive a 1099 k from Square because of cash app? We found out our account was set up improperly and received a 1099k. Any advice?

I highly doubt that you will get them to change the 1099-K form so you will have to deal with the situation as it is.  So make sure the account is "set up correctly" going forward and decide what this payment was for so you can determine which path to take on the return.