BRS/Continuation Pay

Army Reservist, I’ll try to summarize to the best of my ability.
I opted into BRS in 2017ish and have always contributed to my TSP. My TSP balance summary shows matching but when I ask TSP they say my profile shows “non-BRS”.
My LES for retirement type is blank.
MyPay tells me to talk to TSP and vice versa, both are incredibly unhelpful.

I’m in my window for continuation pay and need to prove I’m blended but also do not want to open myself up to this being a problem 5 years down the line and they want all the money back.

How should I proceed to get a definitive answer?

I have done DFAS tickets, I’ve talked to TSP on the website chat and on the phone. I’m getting no where.

Thanks