Idp Ielts — Payment deducted, but 404 error

Address:

India

I was paying via CC, and while my money was deducted, the payment page showed 404, and this happened 3 rimes. Every time, I did, it kept on showing 404. To make it worse, their numbers and chat is never picked up by a human, but only a bot, which is insufficient to deal with.
Finally, after 3 hours when some human did pick up, they neither understand English, nor Hindi, and keep repeating some script responses. Then they just keep blabbering about, keep retrying till our system accepts. Imagine, the plight of a human being, whose amount gets deducted and them being careless.