Bad service - unable to cancel contract

bad bad bad services from Vodacom. I called before end of \ Jan 2021 to cancel my contract (data and router) as it was expiring in Feb. Was told to call again in Feb after the debit order has gone through. I called on 01st and was offered a deal for data only. Few days I called again to try to upgrade the router on the new contract as it was giving issues. I was told no contract can be found on the system. I asked the matter to be escalated. Was told will get the reference number after the call and also a call from Vodacom to sort out the issue. Until today no SMS or phone call. I went to Twitter to complain and was asked to send my information. That didn't help either. Debit order went through with the old instalment. On Monday, 15th I sent a complaint, and it hasn't been attended to. Today, 17th March, after 17h00, I called the cancellation department to cancel and was told I cant cancel since the account has open queries. They now can see the contract which they didn't see before but they aren't sure why am I being charged the old instalment still. Was asked to hold until they engage with the person that made the offer to me, I was holding for close to 10 min and line went to the call review to rate the call.

Thought would get a phone call or follow up call from the consultant who was helping, but nothing.

This is for someone with 3 accounts with Vodacom. I regret and fell bul****.