Adding good vs evil game code a second time ?

Hello all.

I was given as a present good vs evil edition game today and i already had that add on on my account already.

But i thought well i could add it again and use the 30 days thing i wanted to come bk to city of villains / heroes anyways to see what new updates so was nice gift

But every time i try to add the code to my account it always take me to new account page

I don't see why there a problem cause i got on my account already
COH--retail
COV--retail
Good vs evil edition --retail

1 more can't hurt can it ? lol

So what u guys/girls think?

Thanks for any help in advance

Oh and i have sent a ticket but just wanted to see what u you lot thought

Unlikely. Though support might add it manually.