Bad service from the support

I have 2 accounts with Zoom fibre. I can't login to both and make payment for my subscriptions. I tried calling their support line but they have been saying they will call me back. The WhatsApp agents keep telling me to use their website even after I've told them I get a deadend because both my accounts are locked. Now I apparently have to cancel both subscriptions and re-register for new lines rather than updating my login details. Apparently they cannot help from their side and this is the only way. For someone who works from home, this is a disappointment from a service provider who cannot help with login detail changes which is very different from changing account details. Now on top of my payment to Zoom I'll need to pay for data while this whole situation is sorted. I'm honestly disappointed by the service from their support team