Very Poor Customer Service

Spent over a month without connectivity and payment was already made, eventually decided to terminate the Zoom Fibre services, now it's a mission to get my refund. Now when I call their customer care number no one answers their phones and I've been holding for over 20minutes. If I could I'd tell anyone wanting to sign up with this company to consider their decision. I've never had a great customer experience ever since I signed up but now I just want my refund and want compensation for all the calls I've had to make since no one ever calls to provide feedback plus the amount of data I've had to buy since I woke from home. The last person I spoke to was Lyall who requested that I send the proof of banking details which I had already sent to the WhatsApp line. Surely it can't take another month to just refund my money