I don't understand, it works for me.
It only allows me to do it once a day but I've got around 10 on one of my accounts.
I will post a code now so first to get it can have it.
Good luck
A gold trial doesn't give you access to all online features so that may be why you couldn't access the playlist but I'm not sure might just be something wrong with the game. I think you can use more than one of these trial but I haven't tried yet, I'm currently still using my first one, it...