Payment raised, end date to 300 changed

So sick of this crap. My 300 payment date is currently 5/14/2026. Got screwed on the end date, applied to transfer from Save on 1/17/2025, with 291 payments, stuck in forebearance until 7/14/2025. So then they (Aidvantage) said 5/14/2026. Student Aid keeps sending me notices to recertify. I started the form and they now say my payment is up $110 and my payoff date is June 2026 for 300 payments. My income is less on AGI but not much. I deleted the form
What are they doing? I called both, Student Aid just transferred me to servicer and got a runaround there. Any recommendations?