what rate you want? and how much "netto" I receive in skrill?
$4.21. You want to exchange the same via $4.21 worth Bitcoins?
you can say exactly how much btc you want get for $4.21 ? I know what means 1:1, but How can I know, according to what you are estimating btc worth??? for bitstamp, for btc-e, for cryptsy, or you local bank, or lot other, in all exchanger different rate.