I'm looking to buy a pair of diamond earring off ebay - the seller has a opening bid of $325 and a buy it now of $425 - its been up for a while and didn't sell last week and I forgot to bid so I contacted the seller as asked her to let me know if you was going to relist them. She writes me back telling me the earrings have been relisted - then the next email asked me to buy it now for $425 and that she would issue me a refund of the $100 right away so I only pay $325 - the opening bid as she needs the cash now. I'm always a cautious buyers so I don't understand why a seller would want to do this. Is this a format of a new scam? Which I just can't understand. Anyone come across this before?