Vfs global web page not responding and double billing

I tried making a new application online and it kept on lagging and end up doing a double application the first one refused to download the vaf document online for my waiver appointment at 9 I heard to cancel and send the email for refund and I tried my other second application and booked for another appointment and still I'm facing the some challenges. My payment was done on 07 September 2025 and my appointment it on 8 September 2025 and still the system is refusing to work. I tried all my browsers and nothing changes, I waited for midnight to try when there is less data traffic and connection is fast but still no Vail to the attempt. Now I have to ask for two refund for my application and it's saying if I cancel appointment I am charged 850 for cancellation is I find unfair cause their system is the one with the problems