You might try taking the matter to hentzenwerke.com They are the original publisher. Next time I would order book directly from hentzenwerke.

You can get a discount for being a UT memeber here (May have to be paid member here ?)

You can also become a premier member of hentzenwerke.com and get another discount on top of the one above.

You can set up an account with hentzenwerke and next time you order from them your discounts will be automatically calculated and....

You can pick up E books anytime from them after that with no problems.

I have 9 books from them and would reccommend all 9

Ron