I don't want to register here, not even for testing purposes. But I see some different numbers compared to what you write, is it possible that they have different offers for different users?
I set the exchange, EUR for DOGE coin (completely random pair) they automatically lowered the amount I entered because "Maximum amount 141.14 EUR" or "Maximum amount
2324.26 DOGE". It seems a bit more than the 10 euros offered to you.
I see them too, but they don't mean anything.

You see these limits if you are not registered, but without registration you will not make an exchange. As soon as you register and are about to make an exchange, the limit will be completely different, it will show 10 euros.

This is simply a flaw in this site that is inherently misleading.