Payment not reflecting at Vodacom

i have three contracts with Vodacom. My =account was in arrears with R12219.00. On the 24th of May 2024 i went to the Vodacom Outlet at Festival Mall and paid the R12219.00, then i asked for cancellation fee for the first and the second contracts. I was told my account was with pre legal department and it will be updated within 48 hours then i will get help. To my surprise, in the first week of June. MBD Attorneys call me regarding my account with Vodacom. Gave them my story and was given a WhatsApp number to send proof of payment of which i did. Since end of May 2024, i am called by either Vodacom or MBD to ask me to pay and they confirm that they never received the R12219.00. I sent everybody my proof of payment, even yesterday i received more than 4 calls asked about my account with Vodacom. The calls that i received since end of May, are more than 500 from different people more than 4 times a day.