TELKOM REFUNDS ME THEN TRIES TO GET THE MONEY BACK!

As per my preview reviews, I finally received my refund from Telkom for the date they wrongly charged me for over 3 1/2 year period. Today I received an invoice from them for R9,993.85. My actual monthly fee for a landline with ADSL (my internet service provider is and, since 2016, has been Afrihost), is around R757.31 per month. I have been trying to get to the bottom of this but to no avail and no explanation has been forthcoming. I've been in to see the team at Telkom in Sea Point for help (who always provide such great service I must add) and even they can't figure it out. They too have requested clarity. Repeated efforts to reach one Lalika Maharaj via phone and email have also proved futile. She rep**** to a few of my mails over the course of the past few months but the last mail I sent to her about this issue bounced back. Also, the invoice does not state what I am being charged for. It's a total mystery and very stressful I must say. The saga continues.