Surprise account

I have been with cell c more that +~15 years<br> 8 lines to date with them <br> Go a surprise on my account 6 months ago so I capped all the lines ???<br> I haven't recieved an account since last year November 2014<br> Got another surprise when a debit order went off Friday , my acc is normal R 4000 , all of a sudden its R 5400<br> ***???<br> Ridiculous <br> Tried calling the call centre - hahaahahahahahahahahha<br> Sent email and receive some system generated replay ...<br> Service delivery is shocking - going to cancel all my lines <br> <br> Let's see what mtn and vodacom have to offer