What sort of printing? Ink or that idiot vinyl/rubber type junk?
Makes you wonder where they got them printed. All of my ME2 and DAO/2 shirts are still pretty bright even after many washes, and they were around the same price, but Bioware wasn't using them to fund a Kickstarter either.
Oddly enough I've just started up a T-shirt printing business, and apart from the quality of the shirts (which I am extremely about), the quality of the printing has been top priority, and, not as easy to ensure as one thinks.
Direct to garment printing is the way we plan to go in the long term (currently screen printing while orders are small, and designs fairly simple)), though it certainly has it's issues (as all methods do).
Anyway, my point is, it's not always as easy as one thinks, and may be worth getting in touch with Frontier, as it may be a batch issue, and they may offer to replace your shirts, or come to some other agreement.
ALso, I presume they have contracted a third party to print the shirts, if there are issues, I'm sure Frontier would love to know, so they can rectify the situation with the supplier.
Z...