Vodacom Insurance is a ****

I have a contract phone and insurance with vodacom which I haven't missed a payment for since having it. I lost my iPhone 15 pro beginning of September and made a successful insurance claim within a couple of days of losing the phone. As we speak to this day I have not received a phone from vodacom and the only reply I got is that they do not have an iPhone 15 pro or 16 pro on stock... It's now a month without a phone and my cell number where I have to receive important calls. I have sent their insurance department and email and since last week and nothing yet, vodacom via linkedin has also resorted to ignoring my calls, I am not sure what to do next... I am frustrated with the service and funny enough through all of this, I am still making payments to them cause we all know they'll come up with excuses if I miss payments, by the way, the phones they apparently don't have on stork for me, they are still offering on new contracts.