Guild Wars 2

Hello all,
Today i bought gems with paysafecard for first time rather than creditcard.
However i bought a 25 euro card and the game says i can only but for 20 euro gems.
So the rest of the card stays on card which i’m kinda annoyed since i can’t do anything with that.
Why can’t Arenanet make like how much u’re card is instead of giving us numbers we can buy cause i’ve checked paysafecard website and there is only cards from 10-25-50-100 euro cards.
I’ve played allot games till now and i’ve never had a problem like this.
So why can’t they just sell 2000 gems gems for 25 euro instead letting 5 euro on card which is useless.
Sorry for my bad English,it’s not my first or second language for that matter.
Ty for all responses.

Those card services are third party companies. They have no control over them. Those companies likely do that to get you to buy more cards.

Edit: I was thinking they were cards directly tied to purchases for GW2. After looking it up, I see they’re just one of those electronic credit card companies. Your money is not “wasted” as you can use the remaining money on something else.

sometimes I get cards like that after returning merchandise or as a rebate. just buy your normal stuff at a grocery store, tell them to put 5 euros on the card, and the rest in cash (or another card). it’s easy to use if you know exactly how much is left on it. but so annoying to have to deal with in the first place.
Anet is strict about buying gems with money – they only do denominations of 10. probably in hopes that if you want 25-worth, you’ll just increase to 30. there’s strong arguments for both methods (offering every option vs. offering limited options). I’m a believer in offering many options, but I don’t control them :P

They probably do it so it’s easier to manage rather than let players set a variable amount to buy. Also there’s the times when they place items at 1,000 gems forcing players to purchase 1,600 gems.