They always ask for Paypal account. do beware of that trap, just open dispute, money is with AE till you confirm that good are received.
Refund will be process in 3-4 days and money will be credited in the same account from where payment was done.
have done it many times...
good seller usualy ship stuff on the same day, if your item is not shipped within 2-3 days, just cancel the order giving reason that processing time too long to let others know about seller...