OCR.space Payment link not working

I have to create a similar thread as the link provided in previous i.e. OCR.Space Checkout (Powered by Fastspring) is also not working. Please share working link or please we need access to PRO PDF on urgent basis. Thank you

Sorry about the payment issue. If our main store (powered by Fastspring) has problems accepting your payment, please use our backup store (powered by Paddle, a UK-based e-commerce company):

https://ui.vision/store2

Usually all payments that are refused by Fastspring work just fine with Paddle. But if you continue to see problems, please let us know.