I appreciate you taking the time to post here in the community.
It seems you posted a relevant question that my colleague
Ashleigh1 answered. If you haven't received notification yet, please refer to this link for her response: https://quickbooks.intuit.com/learn-support/en-uk/transactions/re-why-are-bill-payments-credits-alwa....
For additional QuickBooks-related concerns, don't hesitate to post them here in the Community. We're always available and willing to lend a hand to your queries. Have a great day ahead.