Rain Internet Service Provider is USELESS

I have been trying to get hold of rain billing department since last year, I had complained to them several times since last year from August, I did not have network for almost 3 weeks, I called the agents they told me about a pole which is not even in my area they were trying to fix and told me that they will escalate the matter to the billing department for me to be credited for the 3 weeks, nothing happened, I paid the full amount when I called them they said they will only be able to see it in September they were dealing with July as that was not enough September same thing happen but for 3 weeks 2 days, It was even difficult to get hold of their call center, called and I was given 2 email addresses to contact- *** & *** sent email nothing happened, I told myself am not going to pay until they sort me out for the 2 months 6 weeks & 2 days they must credit me for, As if that is not enough am in Wellington but when there is load shedding in Paarl my network will not be operating meaning that if we are on stage 4 I will have to use other network because 4 hours for Paarl & 4 fours for Wellington its the 8 hours that am supposed to work- Rain is useless, calling their landline is useless cause they keep on escalating the matter as they cannot connect me to the billing department they are useless