After you file

If SBTPG mailed out the check twice and you did not get either of them then you have a mail box issue.  Have the post office hold your mail for a while and pick it up at the post office directly.    If the bank does send the money back to the IRS then it can take a month or more for them to send out a check ... again your mail box may be compromised or the address is incomplete so it cannot be delivered.   You may need to put in a change of address form with the IRS so it can be delivered some place that you trust it to go maybe like a PO BOX.