Service Failure

I took an uncapped contract with device from Telkom in February 2019 monthly payment of R1499. Everything was just perfect until June 2019. Telkom switched towers from MTN to Vodacom. Since then no incoming calls and no SMS service. Call logged with reference number ***6 on 12 July 2019. Query not resolved to date although I am paying for a service that I don't receive. Very disappointed.