Hi Monika, I'm so sorry to hear about that!
As we usually do whenever anyone tells us about coupon problems, we've tested our Little Pim coupons once again and these were accepted as valid discount codes in their online store. Perhaps the coupon problem was resolved when they updated their website (which may have been done very recently), so kindly try again and hopefully things will go through smoothly this time.
In case it helps, you can try doing a hard refresh (CTRL + F5) when you visit the Little Pim website and try entering your coupon code again.
Do let me know how it goes, and if it still doesn't work, you may consider calling them directly at the number posted in their website (
http://www.littlepim.com/contact-us/), or we can contact our partner for you -- please write to our support[at]brillkids[dot]com email address especially if you're writing in with details about what you were trying to purchase.
Kindly let me know too if there is anything else that I can help you with