Rain should improve on reply time on customer

I am struggling now for month, very little up to no service, dropping service throughout day an night, no call Centre, only support mail address, with no further communication other than someone from support team will contact you soon. Does not happen! . I don't mind the slow internet speed but I ****ed off with the fact that I have to pay more than R2000 for the month of August although my monthly instalment should be R479 and that happen after I ordered 9sim cards for my student and for some weird reasons all sim were Rica under my name, that resulted in the billing and I was billed and have to pay for 10 SIM cards even if I only used one sim. now the challenge is the customer service is too slow, they don't reply when I log a ticket and reply slow on the facebook page. That's my problem. Overall I'm happy with the service, I'm working well from home and I never miss the online meetings. Rain should improve on reply time on customer service.