How long does the 20% Discount Card last?

As long as you have it in your inventory, it will give you the discount forever. :)

No way :o That is awesome! All right! Thank you!

Haha, you're welcome! Be sure to lock it in your inventory though, because if you use the zapper, it can be zapped into dust!

I made sure to lock it! Thank you so much! Do you have the discount card?

Yep, I have a 30 % one. :)

Ooh! That's awesome! :)