Welcome back bundle problem

Hi , I found in the shop a really fair bundle, with basically 80 packs, 2 legendaries and the beautiful valeera portrait for 39.99 euro.
Problem is, if I try to buy that bundle, error 500 appears , but with any other one there is no problem.
Do any of you know the reason?

Hey Hayashigame,

I would first try to double-check the payment method(s) that you have in here. In fact I’d suggest that you remove everything if you have any saved and add your current payment method.

Additionally clearing the cache and cookies of your browser might assist on this.