Terrible service, vague emails, non-acknowledgement of payment

I signed up for C-Fibre in Roosevelt Park in 2017, which took about a month to install (3 months were included free, I figure this is why, it's 3 months from the moment they debit your card the first time not from the moment you have internet.

The reason for this post is because after numerous requests Cell-C has not acknowledged, assisted or advised me on how to change the debit card for this service, the card originally signed up with was lost with a wallet.

Because of this, Cell-C would not automatically debit my account but instead send me a threatening e-mail every month with their bank details which I paid via EFT.

Cell-C has now as of Friday 'shelved' the line and sent a vague email stating:

'By logging into the portal you can unpark the order. Note that you can only unshelve the order from the place where you ordered the service in the first place.'

There are no portal links and the place I first ordered the service has no function to do so, neither does Vumatel's portal. In fact I don't even know who the sender of this email is (vxfibre? is that not Vox?)

Now, logging in has highlighted the fact that Cell-C believes I owe them 3 month's worth of debit orders when I've been making these payments directly into their bank account AS REQUESTED. I do have proof of payment for these payments.

Cell-C, please contact me so this line can be cancelled or transferred.