Just got new IBR plan approved, keep hearing different plan amounts for my June payment from agents

Hi everyone, I’m sorry for asking this question. I am 29(F) and not very financially savvy in terms of loans and payment plans. I am the first of my family to go beyond high school and I am very blessed to have a doctorate.

I was in deferment until 2025 and I qualify for PSLF. My first year of payments has been $95 which I was so sure was wrong (married since 2023 and filed together since then). I graduated officially in 2024. Here are my details:

Total loan principal: 104k
Outstanding interest: 13k
EdFinancial, mostly unsubsidized but no private loans.
2024 income: 36k with partner in school
2025 income: 85k with partner in school, not really working but part time job
Current income: 110k
PSLF: so far so good, mainly things from 2025 have qualified which is good but I’m worried about missing a payment when nothing is “due” (especially for May)

just a month ago, I submitted a new IBR application and I haven’t received any written correspondence about what my new amount will be. On 4/15 I got a “change in repayment terms” letter that said my payment will stay the same for June, but for July it will go up to 1200. I called immediately and they told me it was wrong and will stay the same. I asked for confirmation in writing and they didn’t send anything.

I called this last Tuesday (because for whatever reason I didn’t have a balance due for May, why??) and the lady told me it would be $500-600 (I don’t remember the exact payment amount). I asked for written confirmation and she said I would get one soon. Today, I’m pretty nervous about it so I chatted with a live agent and it spit out a $443 payment beginning in June, but no written correspondence yet.

I’m so frustrated because I can’t figure out what to ask or how to nail down a consistent number. I just want to make sure I make a payment this month and qualify for PSLF. I feel stupid, and all my colleagues and friends have different loans and servicers and quite frankly, no one is as worried about this as me and I don’t know who to talk to.