Rain pathetic service!!

I have been using Rain sim card for data which gave me problems of poor signal for about 2 years and around August I completely lost signal. I logged a complain with Rain, I was told to reboot the device, which I did and never helped, they sent me some settings to use but also didn't help and I was told to change devices to see if the sim card works, neither of all these had worked.. So I then asked for cancelation in September.. They promised to get me a new 5G sim card with a router because the one I was using was 4G network.. They said, I must accept this as a token of apology and they don't like to lose a client and the premium will remain the same and that the sim card will be delivered to me within 3 days and they will refund my one month premium .. I waited till today I never received any router or sim card or any refund nothing..I logged on to myrain and requested for cancelation again in October .. I think my request was not actioned because I have not heard from them, the only thing they do is debiting, they're still billing me for what I don't know.. Their support take forever to answer their calls.. This is frustrating and ***********. I've experienced such a horrible service with Rain. I'm not someone who complains much but they really pushed me..