If I understand this...
You purchase a Paysafe Card, but they only Sell in 10 euros...
if you purchase 4 credits for 7 euros, it cost you an Extra 3 euros, because the Paysafe card costs 10.
The only Option is to save up and get 50 credits for 50.
I'm sure you can purchase a 50 euro Paysafe card.
then get 50 credits.
and that also saves you money in the long run...
because 50 for 50 is a better deal..