Cell C does it again

Signed up for a data contract with Cell C upon which i was told R50 would be deducted and paid back into my account to ensure its active. Subsequently close to R300 was deducted from my account, with that in mind once the sim card arrived I refused to activate it until my money was paid back. The deduction took place on the 7th August 2019 and to date now being the 19th September 2019 i still have not paid me my money back. This is ridiculousness considering i have not activated the sim card. After 2 escalations I`m still in the dark. Really pathetic way of conducting business Cell C? What about the interest ? I`m giving you 3 working days otherwise you will loose another 5 clients as I will be moving my whole families contracts over to someone else should this issue not be rectified by then.