LINE DISCONNECTED / DISGUSTING / NO NOTIFICATION

I purchased some electricity online and the pin code did not come through via SMS. I called Cell C last night only to be told that my line had been disconnected as i was not purchasing data or airtime. How does Cell C just cancel my number without letting me know. The supervisor advised a message was sent to which i can assure you that absolutely no message advising my line would be cut was sent. How do Cell C just disconnect a line as they deem it is not being used? The phone was being used for Whatsapp, Netflix etc, only just because there was no data purchased they disconnected the line? This is absolutely disgusting and by no means acceptable. We were in a situation last night where we could not get the sms for the electricity because of disgusting service by Cell C