Phone less than 6 months and ***** insurance

I am so disappointed by vodacom's service, I bought a phone on 13/03/23 and on 26/06/23 it started giving me software problems. I took it to the vodacom Hatfield repair centre on 30/06/23 and the same day I took in the phone I received an sms stating that my insurance was cancelled, I called their insurance department on *** to find out what was happening and I was assured that it was a system error on their side and that everything is under control. Okay fine I relax thinking that my phone will be fixed, days pass and I call the repair centre to find out what is going on and I'm informed that insurance keeps on declining my claim, I decide to call vodacom and they tell me that I don't have an active insurance on my phone. I've been paying for insurance all along and when I need help the insurance has magically disappeared. I haven't had the device for even 6 months and already I'm struggling. What's the use of a warranty if it's not going to work? What's the use of insurance if it's not going to help? I have to call the repair centre, insurance and vodacom directly so many times but I still can't get assisted.