Have you talked to Concept at all? I believe you said they were bought through Concept. If they won't help you either and this was bought on a credit card, I would really consider contacting your card issuer to see what some possible options are. The LFS you bought these from should be going to bat for you, having people get burnt in this hobby is the quickest way to see them leave forever, especially with the state disposable income in AB is in.Light is already being sent. They are charging me for shipping both ways. Also charging me for the light that is coming. Nice!! So not only have I burned countless hours f'n around with these lights they won't even cover the $37 CDN shipping each way. And there is going to be a $1300 charge going on my visa to pay for the new light until I ship the other one back. I wonder if I'll ever see the refund - oh and I wonder about the interest too. They say it is company policy to not pay for shipping.
I asked if they could toss in an old light for my QT tank frag tank. Not a chance for that either (I'm sure they have dozens of lights that have been used that they could give me for the pure pain and frustration over the last 3-4 months) or just anything to make me come out of this not hating the company. Looking like the absolute best scenario is I'm going to be out about a $100 +- for sure and that is with zero guarantee that this will even fix the problem. Great customer service. I know that if this was my company I sure as hell would make sure a customer like me was well taken care of. I have spent over $2200 on these lights and this is how I'm treated. Brutal.
Good luck with it!