Adding discount code to order

Hiya, I received a discount code from referring a friend however it’s not letting me add to my subscription order.

Issued last week so should be in 3 month period

It shouldn’t be causing this problem so I’m sorry about this!

Can I please get you to drop us an email at team@huel.com so we can look into this, make sure the discount code is working, and make sure you get that order with it?