Vodacom I want my money

I purchased a G5 device with Vodacom online then discovered my area was not covered for 5G, I arranged a return it was not picked, called again and arranged a return then it was picked up. I have never even activated the line. Vodacom still debited my account after the return was done. I made million calls to Vodacom being sent from pillar to post some telling me I will be refunded. Till to date.