WotLK Didn't give 40% when donating

[starperscha]

I made a donation of 30 euros (30+8) on January 4th and still had 10 coins. I don't understand where the 40% is, is this a scam?

[bekzy]

you can open a website ticket so they can assist you .

[Obnoxious]

Up to 40%.
If the donation failed, you naturally don't receive Coins as well.