I have heard about them but have not really used their service. Does Paxful have terms and conditions against scammers? if they have, why not report it to their support, they might be able to perhaps ban the user who tried to scam you, you can also use the slip they sent you as evidence of the attempted scam they made. also, since you have mentioned they have badly edited the slip they sent you, would you mind sharing a screenshot of what the "slip" normally looks like?