POOR SERVICE DELIVERY

I have a wifi with Rain which I'm paying R625.00 including two sim cards. One of my sim cards has not been working since December 2024. I did call and explain my situation but nothing happened. January I called again and I was told to take out the sim and put it on the sim 1 slot but nothing happened still. I was told that someone will call me back, but I did not receive any call from them. So today I called again and the guy that assisted me said he will do a sim swap. So I asked him what's going to happen to the three months that I lost and he said I'm not paying for the sim cards I'm only paying for the router. And then he says, what do I want data? It's not like I did not report the matter. I did from the first month, why must I suffer for someone else's mistakes? So I must just forgive and forget that my sim was not working even though I'm paying monthly?