Mmm there's no excuse...is for earn some money...but if they want to earn, it's not a crime. so say that: "i wanna earn some money if you don't like it your own business". in this way many problems are avoided. XD
Actually if you have a Paypal account (which by the way UR takes), then you can get your currency converted to Euros. Then you can spend the $2.50 American it costs to get a lifetime ability to sell characters.