I quit my abusive job 4 months ago.
After a series of emails about the experience letter, they finally replied me after 2 months and gave me the bank details to pay the money(was in the contract) and said after this they will provide me with the documents. Which I did within the 3 days of receiving the bank details. And then they confirmed that they recieved the amount.
But when I asked them about the documents they stopped replying me and now I send hem a text every Monday asking for the documents.
(I think I won't get the documents, but in rare case I do get them, I am thinking to reply to them saying that this is why I quit.)