The 2 items(mount+title) are part of the pre-purchase of Storm Legion. Meaning those who will pre-purchase Storm Legion before launch, will get both items(no matter what promo you use).
at least that is what I understand of it .
People should accept that a promo is what it is: a promo
You cant expect to get a promo(your very cheap 1year sub, for example), and get benefits from another promo with it. its not how the world works. IF the mount + Title are the benefit for this promo only, then you are simple not entitled to it, and should not get it. Period.
If the mount+title are indeed, like I think, part of the pre-purchase promo, you will get them when you pre-order Storm Legion(with whatever promo you may do that)