Redownloading pass purchaced DLC
So, I just got RB4 today for PS4 and I've been having trouble getting all the songs I've bought for 3 and the 1/2/Country.Metal packs. I found most in the PS Store are ones I've bought before and are free, currently re-downloading those. My question is getting RB2. I bought the export key for 2 on my PS3 but it's either not available on my PS4 account or I can't find it. So, does that mean I have to re-buy songs like Ace of Spades again or is that coming in the future.