Rain is the worst internet service provider in the country

For the past 2 months all I have had with rain are problems never have proper signal can't even use my cell on it to send a whatsapp and nothing has changed on my side to give cause to the signal issue everytime we phone we are promised that somebody will come back to us within the hour .... You never phone back and the issue just persist I have been a loyal client for almost 3 years if not longer First time I had a issue I was told to upgrade my Router to a new one I did that without any hesitation about 4 months later the same thing started to happen again the first thing your consultant told me I need to upgrade my router I did it again a couple of days ago at one of your shops in Bonearo Park the signal is still extremely poor And issue still not resolved the 5 sims that come with the router is still not activated The consultant sold me the R1 upgrade deal and said to me the instalment that I paid for this month will be credited to my account and old router will be discontinued Yesterday I got a sms that I have an outstanding balance and if I don't pay it I will be disconnected I immediately phoned and told the agent why would that be she said because I have 2 routers currently and I haven't paid my account in full I then told her that thats incorrect I only have one router the other one should have been cancelled already and you owe me a credit and that I upgraded to the R1 for first month deal so you owe me a credit for this month she promised to resolve the billing issue and promised that our service would not be cancelled Last night you disconnected my internet and now nobodies available to resolve the issue so as always your service suck your aftersales service is even worse and to top it off as always nobody ever calls back to report the issue Im gonna take this matter further as it is Im paying for a service that I basically never get what I have been promised and then you treat me like a non paying client when you actually owe me a credit