How to get a hold of Manker?

So, for a little while now, I’ve been trying to get a hold of Manker. I tried to different email addresses, but haven’t received a response from either. A friend has also tried contacting them, also with no response. I’m just wondering if anyone has any suggestions or has had success contacting them recently. We both bought T01s and one is useless, and the other is not quite right.

You’ve contacted the retailer that sold them to you?

Manker was supposed to send me a replacement light and never did, and I haven’t been able to get a response from them in a couple of months.

Paypal dispute?

Another thread where I read about T01 quality issues…it’s really a shame that so good light (maybe the best AA for the time being) has so crappy quality control.