Official site:
https://paxful.com/Official communities:
https://paxful.com/communityThe link you shared is correct for Francais language, you can check with the official site and pick that language at the bottom right corner.
Then the seller wants me to cancel the trade to correct the amount which I did not do.
If you did not receive payment, you can start a dispute or cancel the trade. No big deal.
On Paxful, when you trade, you should use video recorder to record process of the trade. Later you might need it as proof for your dispute.
Is this a rip off?
I don't think it is rip off if you cancel a trade. Just remember if your trade partner tries to create pressure on you to release your coin for him, don't do this. Only release your coins if you receive payments well
If you already made payment, mark it as Paid and wait for your trade partner to complete the trade. Else, start a dispute and wait for moderator to join and handle it for you.