We already got hundreds users from whole world. So probably issue in your side. You can text to @paywithusnet to find out what is going on in your side
No offense, but 99.9% of the websites that interest me work perfectly.
Imho it's in your interest to find out what odd scripts, cookies or applications try to embed in your website and adjust/fix, else you will lose potential customers with same "issue on their side".