pathetic service provider

how to say it I have complained on mtn Facebook & hello Peter & 29 emails about mtn overcharged me after upgrade. I even sent icasa an email but assholes in mtn got fear and don't respond and then I was told I will be credited but no I was overcharged again instead of credit now where to now you idiotic cents if you'll don't know how to treat your clients then go fly a kite while it rains I will stop my debit order and do what you'll want even block the devices I don't ****ing care I'll buy a cheap fine and be a prepaid customer than dealing with *****s I say do what you'll want I won't pay you'll period