[Choptones] Back to school 2016 -20% Discount Coupon

Quote from ChopTones

Hi guys! It's time to back to school...But il will be more pleasant with some Choptones products

Just use BACKTO20 coupon during Checkout for a 20% discount!

Doesn't work: Warning: Coupon is either invalid, expired or reached its usage limit!

Quote from ChopTones

Everything seems to be ok, are you logged in?
Could you try again please?
For every enquiry feel free to contact us

Yes, I was logged in, but it worked now.

I have registered but there is no place to apply the promo code during checkout. It goes direct to order confirmation.

Solved. Now I gotta download. Thanks.