It’s very clear that PayWithUs never mentioned anything about card deletion for that reason (5 declined transactions). I see that you block the card after five declines, and I find this rule ridiculous in the first place. Although, it’s your service and your rules but you should make your terms clearer.
You accused Shasan of breaking your terms and rules, so does that mean getting five declines due to insufficient balance is actually forbidden? What if a subscription service like Netflix attempts to charge the card five times in a row within 24 hours? How would that be the user's fault if he doesn’t have enough balance inside, and why should their card be deleted in such a case?
They are not ready to accept their mistake of not mentioning the terms about the deletion of the card (or it might be their technique of scamming as all the people are not aware of the bitcointalk) another person posted about their scam on their announcement thread. And they offered the users a refund if they did not accept that.
I posted about their scam activity on Trustpilot and after posting that the admin of the scam site (paywithus) suspended my account. Before posting on there my account was active.