Contributed to Indiegogo campaign, never received the products

Hello Yeelight staff,

in May I contributed to this Yeelight campaign on Indiegogo:

Since then I have never received the products I ordered. I wrote a couple of mails, but after some answers and still no shipped products none of the mail addresses I tried was reachable anymore.

I hope you can help me out in getting the value of my 190€ back.

Thanks in advance