Urban Fantasy where the FMC is promised to the devil/demon king and when comes to collect on the debt she tries to kill him

[Andrea]

Cant remember the name of the author or FMC but the devil/demon king’s name started with the letter A. Pretty sure he comes to collect on the bargain on her birthday.
Read it within the last couple of years.
Cover had red tones, maybe flames around the FMC (not super distinctive for an urban fantasy, sorry)

[Gillian]

This sounds familiar to me. Did the woman sell/promise herself or did someone else sell/promise the FMC instead?