I have written some of this, but I will start over. On Mar ** I saw a purse on Trades...

I have written some of this, but I will start over. On Mar ** I saw a purse on Tradesy that I was interested in. It was listed at $***, which was the first price I saw* later that changed to $***.**. That isn't a problem. The seller said there was a ten percent discount through Mar **, but if I didn't buy it until Apr * she would still honor the discount. I never saw the discount and I sent her a message. She said the discount that was taken off of the original listing which I never saw. The price was not even visible to a prospective buyer, only the seller. I sent another message with zero response. Tradesy customer service said I have to deal with the seller, which has been a dead end. All I want is the discount that was advertised- the main reason I bought the bag. Order * ******. My account has already been charged without the discount. I need some help.*Martha