Flipkart — Not able to use Flipkart pay later

I Was using flipkart pay later till march 2022, after that i haven't purchased using paylater and due to some issues was not able to pay one the emi on time. Then I paid the full payment of the dues along with the late fees after like 6 days since the actual due date.
After that they blocked my pay later account.
What sort of nonsense is this? Even after paying the full amount my account is blocked.
Now it is showing that i have 20000 in my pay later account, but i am not able to use it as it is showing its unavailable. Unable to place any order with the pay later.
Pls resolve asap..