Personally, I’m often skeptical each time another seller contacts me, especially when they offer similar services like i do. I have also had to re-sell a gig, I was too quick to accept the offer without checking through to be sure I would be able to perform. When I got stuck, I had to look for another seller and re-sell to him. I was at a loss tho as he would only accept an amount higher than what the original buyer had offered me. I had no choice than to pay.