BEWARE OF EBAY SELLER KNOWN TO USE THE NAME SPORTSSTOP

I was contact after i had bidded on a doll and lost she contacted me to tell me she had some bidder back out and to see if i still wanted the doll she gave me a price higher than i wanted to bid so i made her a offer at frist she said i would have pay shipping for it also i told her no than she said that she had another person who would pay more something aruond 5-10 dollars more but than she agreed on the price we had talked about and i sent her a money order 3-4 weeks later i started to worry about were my doll was but i couldnot find her address she e-mailed me 2 days ago and said she had e-mailed on the jan27 and had got my mo on the 30 she said in her e-mail she had told me that her inventory was wrong and she did nothave the doll i have not received any e-mail from her until 2 days ago at frist she said she did not have this doll her inventory was wrong but she had 2 other dolls that i had asked for and i could buy them and she wouldnot blame me she would be upset to she said that the money would only pay for one doll i e-mail her and told her i thought she had sold it to someone else than she e-mailed back and admitted that someone told her she could sell it after the bidd was over than she admitted that resold it to a customer but i am not sure if she did this on ebay i told her if she would send the two doll which value is pretty close to the same price we would forget it she wrote me back and said i was blackmailing her i told her i was not the one in the wrong here but she doesnot want to do that some act should be taking for false ad she broke a contact and she resold this iteam please help