Mercari Seller Warning

Hello all! Yesterday I purchased the Viserion Ice Showdown set from a seller on Mercari. I bought at the listed price and after telling the seller I did not also want the Drogon set (which they PM'd me to ask), they cancelled my order and relisted the item I purchased, for a much higher price I might add, as well as blocked me so I couldn't message them or comment on the listings to warn other buyers. Their Mercari name is AndrewHoover. Their profile link is https://www.mercari.com/u/471769503?sv=0 Feel free to comment on their posts to warn others or PM them and tell them they're scummy 😂