Our cards should work where Visa is accepted, we have some restrictions where our cards cannot be used you can find them here
https://satsrefill.com/restrictions also our cards can be declined when a merchants process payment only via 3DSecure.
I think that Paypal have 3ds support, so there is no chance your cards would work there.
You can use our cards on PayPal (100%), BUT it may depend on the user use of VPN, location, etc. We didn't have any troubles paying using PayPal with our cards..
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No connection, just standard legal language. You can find the exact same text on thousands of websites.