Service fee is 1% to 5% for most brands, we also offer discounts (that means you pay less than card face value instead of fee) for some brands. Some specific cards (e.g. top-ups) may have higher fees due to issuance costs.
I see, it's make sense though.
The fee for brands is cheap because their products are expensive in the first place and they also want to attract people to buy their products.
However, for top-ups it's 1:1 with fiat value.
Does you're still get profit if you offer discounts rates? I think it's better to have a special place to promote the discounted gift cards because people like cheaper price.