Poor Service - Bill Dispute

I am really disappointed with the type of service i have received from telkom. All i need is that my money be reversed as i was overly charged. I called 3 times today into customer care and all 3 agents dropped the calls on me. The last agent (Maqhawe) was even worse, he **** about having no manager on the floor yet paced me on hold to go validate from the manager/team leader on what root to take in resolving my query.

I have 1 contract which is R379 however i was charged R620 this month, i need my money back please, agents picked up where the error was however now its difficult to l0g a mere escalation for my challenge.