A few people have been scammed on the site, Only use paypal to pay for items for sale by other members. If they will not use paypal, its likely a scam NEVER SEND E-TRANSFERS OF ANY KIND.
Orlando, I might be able to help you in your search for reupholstering your seats.
I don't know what model year NC you have however I have the OEM covers from my 2021 NC750xdc.
If you think that they will work for you PM me.