Very bad service Cell C has given me

I purchased R200 Cell C airtime on the 29 Dec and purchased home connecta bundles for R199 80GB valid for 30 days ,but on the 31 I received the message saying I am remaining with 1MB of Data I never felt this angry, I called them on a Sunday they told me they have a technical problem with that data and technicians are busy fixing it, last week Thursday I called again they told me they received a message saying they are returning our data we must wait 24hours ,today when I checked there was no data when I called trying to find out why my data is not loaded I was told the data was not purchased but I did received the sms which state that a 80GB of data was purchased will be valid for 30 days... And that I was using my airtime all along ...I bought airtime with the intention to buy data now none of that received...Cell C has a very poor service and I nolonger need their sim card won't use it and will advise every customer trying to purchase a cell c sim card not to as they will be ****** of their airtime and they will take advantage of them. What I need from cell c is my airtime that's it so that I can be able to buy data because I can't function without data I bought that air I didn't pick it in the streets