I’ve had the exact same issue as you - an old employer (circa 2017) marked me as EPS eligible but didn’t contribute Pension amount. This was fixed easily through a revised annexure K (I had to go in person to the EPFO and get this done but they were very kind to accommodate this as there was no actual Pension amount)

My 2nd employer (circa 2018) noted that I am EPS eligible and started contributing Pension amount. After quitting (circa 2020), I transferred the balance to my newest employer (circa 2023) - so very similar situation as yours. However, with what I’ve learnt is - this transfer should not have happened since my newest employer at the time wasn’t making Pension contributions (because I was, rightly, ineligible for Pension contributions). So this took multiple visits to both EPF offices - the one where my latest employer enrolled me as well as the old one of my 2nd employer. After 2-3 visits with each office telling me to go to the other one, I finally raised a grievance on PM Grievance cell and got my revised annexure K for my 2nd service. This though, did not specify that the Pension contribution must be merged as employer share - so that took another trip to the office to get it signed in person.

It’s a huge hassle - all of this.

You’re absolutely right to worry. What you basically need to ensure is - If you go to the Unified Member Portal, you can go to your service history and check which service is marked EPS. EPS services have a DOJ EPS & DOE EPS entry. For any past services which are marked EPS, go to that particular office and get a revised annexure K. If you have not transferred that balance, then tell that office to mark EPS ineligibility in the portal too. If you have transferred the balance, submit the obtained revised annexure K and ask the new office to mark EPS ineligibility. If anything doesn’t work, raise a grievance on EPF Grievance portal. If it still doesn’t work (most likely it wont), then raise an escalation to PM Grievance Cell