Nimble Disaster

Vodacom sent my details through to nimble after a misunderstanding over when my contracted ended with them. After investigations were done, i fully cooperated to pay Vodacom through this Nimble Group. Paid the outstanding amount in full over a week ago using reference number BT264930 and till today i still have not received a paid up letter or confirmation that the account is closed. I have called Nimble numerous time to get clarity and all i'm told is they will send the necessary docs to me. They don't reply to HelloPeter complaint, they are very rude over the phone. I still don't know how Vodacom uses such a company. Could i please get the paid up letter confirming this account has been closed!!