How to go about filing taxes for a 1099-G while waiting for an unemployment appeal

Hi there, so I'm currently waiting on a hearing for an unemployment appeal concerning an overpayment discrepancy. So the Form 1099-G I was sent is adjusted for the overpayment, and I'm not sure if I'll get the hearing before tax day and be able to get it adjusted. How should I go about this? Should I try to get an extension, or amend my taxes later should the appeal go through at a later time, or something else? Thanks for any help. -Dave