If you indicated that you wished to have your 3rd stimulus payment direct deposited into your bank account and provided the routing number and account number, then it will get sent there. Just using a debit card to pay your taxes would not have automatically made that change for you - if this is, in fact, what you mean in your statement. If you did not indicate anywhere on your 2020 tax return that you wanted it direct deposited, then again they will mail out the check to you at the same address and the previous two payments.