My account with Saya Recoveries was settled in full over a month ago

My account with Saya Recoveries was settled in full over a month ago. Every time I follow up with Gugu Sithole, the reason for the delay changes: 1. First told the letter would be ready in a day, then 5-7 working days once payment was passed to FinChoice. 2. Followed up a week later, no update. 3. FinChoice confirmed directly that Saya's pay-over is not required to issue my paid-up letter, since my account is already settled. 4. FinChoice support couldn't assist and tried transferring me to legal , the call went unanswered, same as last time. It's now 30+ days since settlement, with no paid-up letter and no consistent explanation. I have a full record of every call and message. I need this resolved with a written, dated confirmation, not another promise that changes next time I call.