Service suspended for a R0.00 due. Rain app not user friendly

I'm struggling for hours to get assistance form rain. I`m unable to log a case with support on their app. and when I send a mail the system says its not allowed I need to go via the app. however. the app. is not working. My WIFI is currently offline. as soon as I sign on the rain app. shows I need to do a Payment for R0.00. However, on my bank statement is shows payment was done. I do not have any uncleared amounts on my Bank account. If the funds were unpaid why was it not returned by rain? please send me urgent feedback. I just changed my debit order date to the20th. why is my internet off if my outstanding bal. is R0.00. my Rain statements shows payment was received. This is the first time I receive such service form rain I`m very disappointed!