Getting PUR3001 error when attempting to purchase Destiny Expansion Pass

Bungie has made some modifications to Destiny, it has posted this notice in the Microsoft store.

https://www.xbox.com/en-us/games/store/destiny-...

"Destiny game required to play, sold separately. DLC content in the Expansion Pass may be sold separately. Do not purchase Destiny Expansion I: The Dark Below if you purchased the Destiny Limited, Ghost, or Digital Guardian Edition with the Expansion Pass, as you will be charged for it. Destiny Expansion I: The Dark Below may not be available on all platforms or in all territories. Pricing and release dates may vary by platform."

I was just taxed twice by buying the Destiny Expansion Pass thru GameStop. The GameStop website, and the emailed invoice, said I purchased a download code; $35.00 plus tax. However, when I redeemed the code, I was credited only $35.00, and when I purchased
the Pass I was charged $34.99 plus tax. So, after being in contact with both GameStop and Microsoft, it seems GameStop was only selling a gift card for the amount that would cover the Destiny Expansion Pass purchase; not a direct download code. So is this
legal to charge tax on the Live Currency (a gift card)? And as the Microsoft Support suggested why would you ever buy a gift card or Live Currency (especially from GameStop), when you should just purchase everything via the Market Place? BTW, the link from
the Destiny website, to purchase the Expansion Pass, to the Microsoft Store is broken, so only the GameStop option is available.

So it's not even showing any of the destiny purchases I made except for the forsaken expansion pass

Well, i had to buy the titanfall season pass again, so i wouldnt be surprised if the destiny expansion required another purchase.

Having a similar problem, only i bought the code to Destiny Expansion Pass, but it wont let me buy it, says a error keeps happening.