Query: Arbitrary FD rate modification mid-way by SBM Bank

Dear members,

Background:
In Dec '22 I got Paisabazar FD Step Up Rupay CC by SBM bank. 1 yr later in Dec '23 received an SMS that it has been closed due to non-usage. Looked up the RBI rule on it and learnt bank must inform customer 30 days prior and give opportunity to respond before closure. SBM didn't do that, escalated, didn't heed, Raised to RBI BO asking reinstatement and compensation, RBI recommended compensation and SBM want to give back FD proceeds+compensation 20k.

The issue:
The FD was of 15k at 8% PA, for 735 days and it's ongoing, maturity in 7 Dec '24. Premature closure penalty is 1% PA. I calculated that they are offering less amount than what I should get considering the numbers i.e., 16,933.15, ₹608 more than their stated 16,325. I asked for breakdown and they gave me this:

Note:
-the FD is ongoing
-midway randomly on 4 July they decided to 'liquidate' the FD even though card was closed 6 months ago by them unilaterally
-The FD is SAME with same account number, it's not that they opened fresh FD with new rate, how can they liquidate and set new interest rate mid-way on the SAME FD?
- Isn't it violation of terms of existing FD?
-When onboarding there was no such term and as per PB dashboard the contracted rate is still 8% PA and FD is on-going

FD details:

As these fringe banks do not care about rules, my question is: does it look compliant with RBI guidelines?

Something is fishy.

If they are doing funny business again, I will take them to RBI again. Your valuable opinions are appreciated.

(sorry for long post)