STAY AWAY FROM CELL C

It is the 3rd time that i have this issue with CELL C. My data account was billed at over R2000 and not ever received a statement for this. at the end of Jan 2015 I was billed for usage for Dec 2014. this bill was over R2000 for my data contract. I phoned customer care 1 Feb 2015 the find out what is going on. i told the clerk who helped me, that i also phoned Cell C customer care on 5 Dec 2014 to find out my data cap status. The clerk then assured me that i haven't gone over my cap and still have about 5 gb left on my data cap. So the clerk I phoned on 1 Feb 2015 looked and told me that can also not see any data session that i was billed for, for the month of Dec 2015. Which makes sense to me since i hardly used my data in Dec 2015. I AM STILL AWAITING CELL C TO SOLVE A SIMPLE PROBLEM AS THIS ONE!!!! i have escalated the issue quite a few times and yet nothing has been done. Cell C are quick to take your money but can not even respond to a small matter like mine. IN MY LIFE I HAVE NEVER EXPERIENCED BAD SERVICE LIKE I DID FROM CELL C