Ps4 help?

I started FF14 on my ps3. I upgraded to the ps4 for free when it came out on the ps4. I had to reset all the data on the ps4 and lost everything. I thought I would be able to re-dl it but its saying the code I used has been used, which it has, last year when I upgraded from ps3 to ps4. Am I going to have to buy the game for the ps4?

I was able to start the ps4 client download by going to my Library on the ps4. Let the LONG wait start. At least I filled up my retainers to stuff to sell.