Free Additional Slot Voucher "Invalid"

[Deidara Yamanaka]

When I try Unpack Free Additional Slot Voucher it says "Failed to open package. The item is invalid." and description says its available until July 20th. Pls help me i cant get rid of it too so i cant do anything with it.

[Crazy Sebo]

I experienced the exact same problem and i got a ticket from support, told them my problem nicely and the next day they sent me a proper one to use it.