Useless service

I currently have a contract with Vodacom and my phone is one year six months now. I am currently having an issue with the phone and went into the Vodacom Midlands mall branch on the 10th August 2020 to be told it's a software problem and the warranty does not cover the problem and that I will have to pay for it. This is ridiculous as I was made aware when taking the contract. It's not like the problem was my fault . Anyway they were charging me R250 as they tried to assist made me wait for An hour and a half only to say it didn't work I didn't pay the 250 and I then I was told to take it to Samsung as if they send it , it will take 2 weeks.