New client - No service

On 3 December via what's app, I enquired about LTE as we don't have fiber in our area. I was sent a link where I had to provide my personal details and banking details, but I read there was a payment that needed to be made. I tried contacting them since the 3rd, no answer, if there is answer, you hold forever, but I have not managed to speak to anyone who could assist me. I received an email with the same link, I responded to that as well to enquire about details and when I should make the first payment as I haven't received an invoice or anything. Their what's app is under maintenance for a short while since last week already. I have exhausted all ways of contacting them, I even tried opening a ticket, but apparently I don't have an account (which was created via the link) and at this point I strongly feel if it starts off like this, what type of service can one eventually expect. I am looking for another service provider who I can communicate with and actually responds or answer their phones. Not a very good start for me.