Unprofessional service

I’ve lost my contact SIM card in December 2019. Since then have I been struggling to get a new one. I explained to them that the SIM card got lost due to theft. The consultant didn’t want to assist me coz I have my license with me and proof of residence but not my ID. I went to collect my ID and went back the following day . They then told me that the SIM cards are out of stock (Menlyn branch). I tried to sort everything out before the lockdown but still failed. I then called in looking for a solution they advised that I purchase a new SIM card then call in again which I did but still I’m not getting the help. Like i really don’t understand what’s so difficult on just creating a simple sim swap. I could not access my data for Three months no going into the forth month but yet Telkom still debits my account every month. I’m really upset with Telkom and I request that they refund me for those 3 months or they re add the data I couldn’t use. Other than that I’d like to cancel my contract with Telkom with no penalties added as I’m not at fault here Telkom is in breach of contract as they failing to provide the service they promised too. Telkom your competitors are doing much better and I wouldn’t mind switching .