Ebay allows for sellers to cancel transactions for any reason, such as:
1) Buyers have a PO Box for their address which some sellers do not send to
2) The seller was not happy at the final price if it was an auction
3) The buyer asks the seller multiple questions which are already in the listing, leading the seller to think the buyer has not read the description and the transaction will turn sour once the buyer receives it
4) The buyer leaves negative or neutral feedback for many sellers, so seller won't take the risk
5) The item sells elsewhere
6) The seller is inexperienced
As a seller, I have cancelled order previously, but only if the buyers feedback is generally negative or they are rude/demanding when contacting me. This maybe happens once or twice a year.
