SABC and Revenue Consulting Debt Collectors disgrace

Licence renewal came and it was paid. Received 5 requests to send proof of payment. Sent the request through to them but they handed me over to debt collectors. Revenue Consulting Debt collectors asked for proof of payment on 3 occasions which was also sent to them. SABC and the debt collectors take turns to request proof of payment about 2 (rwo) times a week