Absolutely disappointed in shocking service

I am absolutely horrified at the disgusting customer/client service offered by Telkom. NOT ONLY did I complain WEEKS ago about an overcharge on my account for a \ONCE OFF INTERNET BUNDLE\" that I did NOT purchase, and nor did my son who has access to the phone. I got a case number and NOTHING has happened... the next month sure enough - the SAME %$^#&^ thing happened ... even a higher charge, and this time when I queried I got absolutely NO HELP ..... I only EVER top up data with R69 at a time and the first charge on this account was R176 and the very next one even higher .THEN, having calmed down, I thought I would attempt to action an upgrade on my account which is overdue - much to my dismay, Telkom were offering the Samsung A7 at a lower monthly charge than other suppliers .... well what a joke ..... not only do you not offer any service for this on-line but I then went to TWO Telkom shops ..... neither of which were helpful IN THE SLIGHTEST !!! Firstly I was told they don't have the A7, go to the other shop. I then walked from one end of the mall to the other to be told they don't have - no-one is able to tell me WHERE I can maybe get!! USELESS, USELESS, USELESS !!!!!"