Poor service from Vodacom

Good Afternoon. I bought a phone through Vodacom. The phone was damaged in February 2019. I claimed the insurance and it was declined. What is even more sad is that they are still debiting insurance premiums even after several attempts to cancel it. They even sent me an email confirming that its canceled but they just don't stop debiting. My contract will expire soon and I'll never do business with them again.