Most of the guys in here are looking to scam, so better be careful about your trades. You should only trade with "trusted" sellers, and if the cost is bigger than a certain ammount, better take your measurements, ask some people he/she traded with recently, get a middleman and so on. Most scammers prefer paysafecards because its non-refundable, in addition to other payment methods.
I feel for you, and be careful in ur next trades, we have all been scammed in here..