Extremely poor service at vodacom

Having been a long time vodacome customer (6+years) I have consistently had horrible service. With hope they would change and fix their service and their product offerings, I am at my wits end. Starting with a damaged tablet, that was returned to me with a cracked screen to which they kept not taking responsiblity then, The most recent of a long line of issues is having my contracts miraculously migrated without my written consent. An agent had called me in the earlier months of this year. Offering me a downgrade on my contracts due to me not using my full bundles. That was a happy surprise to which I agreed over a call. I heard nothing more from the agent, nor did I recieve any email commination. I did recieve an email on the 1st of May 2025 notifying me of a contract migration to increase my payment and upgrade my contract to a higher one. Quote date 02.04.2025 and arriving on 01.05.2025. And i was debited for the new amounts even thoygh the qyotation expiry is the 02.06.2025. I contacted vodacom via email and still have not recieved any response. I then recieved another email with another migration increased amount. This is very disappointing