As mentioned earlier, if you already redeemed your box set code earlier, there's no need to dig it out again. Just go to:
https://redeem.thesoundofvinyl.com/
Click Login in the upper-right corner, and after logging in, you will see the link to your download again without having to re-enter the code. The new (corrected) download filename is "
DRIFT_Boxset-extras_June2020_FIXED.zip"