Howya fellow Dubliner!
Regarding your lost Kufala Crowded House downloads - as you know after the demise of Kufala the live recordings initially showed up on a now inactive crowdedhouselive.com web site.
All of the Kufala recorded Crowded House shows from the 2007 and 2010 tours now appear to be available at:
Do a search under "Crowded House" and they start appearing a page or two in.
It's beyond my knowledge if you'd be able to download previous purchases from Kufala there as the live recording catalog has changed hands so you're not dealing with the company you originally bought them from, but it's a starting point to investigate.
If there's an avenue to redeem your original downloads, that's where it's most likely to be and no harm in e-mailing them about it.
I hope it works out!