Vodacom Homemark ****

I got into a contract with Vodacom through Homemark in October and was not satisfied with the contact and device I asked them (Homemark) to cancel my contract. They arrived on the 03 November 2021 to take the item and gave me a a paper to prove the collecting of item. I misplaced the paper. Come beginning December Vodacom debited my account for the contract. I tried to call Homemark there was no one on the other end of the line. I went to a Vodacom store and they told me they cannot assist as the contract was done via Homemark. I reversed the debit order. Beginning January Vodacom Debited my account. I called Homemark and they say there have no record of the device being collected and there is nothing they could do to assist in the matter. I should produce 'proof of collection'.