Vodacom Faulty Samsung on new upgrade

I took out a upgrade on Sunday afternoon 29 Sept 2018 at Cycad Vodacom. When we got home we started setting up the phone. The pocket where you insert your simcard was faulty. I returned it on 30 September 2019 at 9:00. Till today the issue is not resolve, they send me a quotation yesterday of R2666. to repair the phone. I escalated the complaint to customer service, I Placed it on record that I want to use my rights to opt out of the contract, they should let me know how to proceed. Just no feedback. Worse service ever. I have been a loyal customer for more than 20 years!