Aliceara Hilo Ablaze "Hilo Gold" may have problems

[gardengirl13]

I got a Aliceara Hilo Ablaze "Hilo Gold" a week or so ago and when it came it was not re-potted right. It was severely root bound in what looked to be a 3 1/2" pot then shoved into a 5" pot with chips shoved in around it, not potted very nicely. It was very dry too. Which with the colder weather I can see it drying out in the two days it took to get here, but this was quite dry.

I watered it heavily then left it over night to rest. The next day it took me over an hour to get his poor roots unbound. Ripping a few fingers in the process! But thankfully it didn't loose too many of is roots. I put him in my normal mix of bark, charcoal, perlit, and moss and didn't water him (the media was wet of course from soaking) for a while. I was going to wait longer, but he was dry so fast again! Now he's looking very sad. His leaves are turning yellow. New leaves, not the older ones only. I don't really want to try to return him for any exchange since the cost of doing so will be too much for me. I also don't want to just give up on him. I did give him a nice dose of seaweed to try to help boost root growth. What else can I do?

Here is a photo, you can see some of the yellowing starting in the one leaf, now three or four others are getting yellow too.