How to top up Steam Wallet and PS Store - through the website? (A Plague Tale: Requiem)

There is a button "How it works"

In addition to conversion, they also take a commission (from 7%)
For each replenishment, we, as a service, take a small commission, it is from 7% and depends to a greater extent on currency conversion rates.
Rates are updated every minute, so the fee may decrease / increase.

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No. If I want to take the game, I will look for the key

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They sent me instantly, throw 100r and check, I did it

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There you specify the login (which you enter along with the password when entering Steam)

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Through kiwi, yes, well, I already had it confirmed)

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Everything is indicated on the calculator, if you mean the Steam balance site, the rate floats and changes every day

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Infa only about Steam. Through qiwi or webmoney, you can replenish your wallet. Through webmoney you will lose 4-5%, through qiwi about 10%.
Both methods are described in detail on the Internet.
And on any third-party services that offer to replenish the Steam wallet, the commission is usually 20-30%.

mrKaktak 28% commission is this normal?