That page does not seem to be working with a 404 page not found notice. I looked around for a support email address and there was one listed at the bottom of their website.
When you say chat support do not respond I presume you refer to the live chat button on their website. If you wanted to send them an email you can do it here:
support@coinpaycard.netYoo my card balance was not updated after I funded it
Support chat don't respond
Couldn't find another way to reach out support
https://coinpaycard.net/support 404
Page Not Found