UKC

They were on radio in the last couple of weeks, possibly 6music or BBC Scotland. As unlikely as it sounds, they were a bit like a cross between Cajun music and Echo and the Bunnymen. Any ideas?

Cockwomble?

Cockwomble are the best/worst band you've never heard of. Until now!

I recently heard Mama Rosin via 6 Music - give them a Google.  They tick the 'cajun / 6 Music' bits of your question, although I'm not sure about the Bunnymen bit...

Try singing a riff or lyrics into Google, it might get you somewhere?

Yes. Banned from the building ha ha ha