Utter incompetence and unaccountable billing

On 06/01/16 I logged a query to Cell C to inquire about airtime being deducted from my account for the month of December and Cell C stated that I would receive a follow up within 24/48hrs. I called Customer Services about 6/7 times and also emailed [Email Removed] on 21/01/16 to state the nature of my query and again had been told that I would receive a response within 24-48hrs. Eventually I had a very strong conversation with a tech support manager (Ayanda Ndluvo) and he flagged my query to which Cell C eventually(26/01/16) responded to the query of a data validation which does not show my original query as to why my airtime was being deducted. To top it all off, the validation I did receive was for 01/01/16 and not the month of December as I had requested. I have had it to my wits end with the *********** service Cell C delivers, even today, airtime at small amounts have been deducted from my balance for me using the services which I had previously paid for i.e only using BBM and Whatsapp and no other internet services. This was in the space of 24hrs that ~50c was deducted from my balance. It seems to be a trend, towards the end of a month Cell C leaves my balance at R0.00