Fingers crossed, it should be okay since it has already been delivered. I do remember 2 to 3 cases from the DV 2021 group who had a tough time with getting the payment receipt sent.
@jewelmerit1995 was one of those who got bounced from pillar to post while other folks were getting back the payment receipt, this person subsequently sent in a new payment out of frustration. They got back the receipt for the second payment long before KCC eventually sent them the receipt for the first payment.
For those yet to send in this payment, highly recommend sticking to
U.S. Department of State as the recipient