Ridiculous debits and wrong debit dates after numerous attempts to communicate via emails and e-tickets with no success

I am so tired of this Rain network company now! Firstly they don't have a line to call so that we can directly communicate our issue. They only have a ticket on their app and they don't respond after sending queries. My major issue with Rain is the debit amount... I don't know where they get this from. I requested for one of my packages' limit to be reduced to 0 as on the app it reduces to 1 gig. Even though this has been reduced to 1 gig and was not used, am still charged R995! Instead of R785. I sent several tickets regarding this issue and I want my money back. Today you just decided to block our network even though we've communicated several times with you that the debits should be the 1st of each month since you don't have my salary date option. I can't even change this on the app. You are ridiculously charging money that we don't know of. Do you really check on how much gigs used or not after a limit has been reached or you just guess? So unprofessional and this is causing a lot of inconvenience for us who wants to do work at home. Nonsense.