I'm selling kits on marketplace and this happens all the time. Get contacted by a person on Saturday wanting to buy 4 kits and what the postage would be. Pack them up. Replied with the total. They said can I pay you Tuesday claiming that's when his disability check would clear. No problem. Gave me an address and phone number. Went to messenger today and the whole conversation is erased. I'm a member on Facebook Good/Bad Traders List so I thought. Why not check. Did a search and there he was for not paying for kits and not delivering kits. He also told me he was a member of Model Car Magazine Forum. I didn't even bother trying the phone number because I'm sure it's fake. Scammers everywhere.