Where oh Where can I purchase Dispel from, I have licence for it, but cannot find the place to buy it. I am at Golmore Jungle/Feywood etc. I already have Fira, Blizzara, etc, have I missed the place to buy Dispel?

Should be available in most shops after you've defeated the next Judge.

I believe you can find dispel in:

Rabanastre
Nalbina
Phon Coast

I guess the closest would be Rabanstre so try that!

Also remember that it might only be available for purchase after a certain part in the storyline, but that I do not know. Chances are you can get it now so you probably don't need to worry about that.

You can get Dispel at loads of shops. I think Tetran in Eruyt Village probably has it, though I'm not sure. Failing that, it is certainly sold in Mt. Bur Omisace by the Seeq Merchant there.

Alternatively, if you've reached Balfonheim Port, you can get Dispelga, which uses dispel on all foes.