Hi Whidd,
Don't worry it is still possible to complete your trade but you would need to simply gift the Booster Packs instead. It's very simple to do and is the same process as purchasing them for yourself. Simply go to their profile and press the Gift Booster Pack button and choose the amount you would like, the same as you have done for your own account.
Hope that helps!

Hi Whidd, Don't worry it is still possible to complete your trade but you would need to simply gift the Booster Packs instead. It's very simple to do and is the same process as purchasing them for yourself. Simply go to their profile and press the Gift Booster Pack button and choose the amount you would like, the same as you have done for your own account. Hope that helps!