Basically when i was looking and racking up ads credit, suddenly it consumed my ads credit even though it’s not enough around like 0.10 ads credit when i was having only around 3 ads credit, and i remember having an ad campaign auto paused even though its 5 ads credit daily shouldnt be able to run, but it took like 0.10 ads credit, and then after i got to 5.82 ads credit and ran it, the ad balance in payment settings never goes down and players is still coming in
Ad Credit Billing deduction is not when you start the ad/campaign(this is the reason why you do not see immediate deduction of ad credit when you create the campaign), it is billed based on impression, and impression might be slightly delayed, so you might be seeing continuous deduction of ad credit with time being.
I have always seen ad campaign being late, but i have never seen payment settings updating late. It’s always updating live for me in the numbers of payment settings