Spend and unused combined exceed the budget

Help and Feedback Platform Usage Support
#1

Using ad credits to run sponsored ads, the spend and unused credits combined exceed the budget.
like my image

1e6ca3e5228dc595ef5b358c565799d
1e6ca3e5228dc595ef5b358c565799d977×577 134 KB

Has anyone encountered this situation before?

#2

To add, using lifetime, not daily