Uc claim closed - how to do MR or new claim

Hi

I claimed UC with transitional protection and LCWRA.

I received an inheritance amount in mid October which took my balances over 16000. I paid debts on the same day which brought balance below 16000.

I reported this to UC and asked how to upload proof and was told to update the journal when my balance changed but wait to upload proof until it was asked for.

I have been reporting every 3 days since. I have purchase items for the house, paid bills, vets, food, clothes and regular normal expenses.

I was asked to attend a jobcentre to provide paper statements. Asked in journal for reasonable adjustment to upload instead. This wasn't answered so had to attend appointment with my friend taking the day off to come with me.

UC messaged in journal saying what I'd taken in wasn't enough so they sent upload links. I uploaded the information requested and explained what I'd spent the money on.

I recieved a reduced UC payment for October - November assessment period in November on normal payment date.

Today (16 Dec) recieved journal note that my UC is closed due to deprivation of capital.
The date of claim closure was 6 Dec. The balance hardly changed between 3-6 december. My claim periods are 6th to 5th of each month.

I recieved no payment for November to December assessment period UNTIL today, when I recieved one by Faster Payments after the claim was closed, which was reduced due to the capital I have.

I've asked for an explanation for decision so a claim manager will either phone me or message on the journal by tomorrow evening. I can't input into the journal as the claim is closed.

So after I have heard from the claim manager what can I do?
1. A rapid reclaim and how to do that
2. Mandatory reconsideration - can I do that as well as a rapid reclaim? Or if I reapply does that mean I can't ask for a mandatory reconsideration?
3. Do I make a new claim instead using the link on the journal?
4. Why have I recieved UC payments for the assessment periods then had the claim closed?

Thank you for any help