Dear, first of all, we really feel sorry.
At the same time, we thank you for your support to UT02.
Actually, your UT02 deserves your cost 39.99$, trust me:)
29.99$ is not the normal price of UT02, but vip price for some forum members,
actually as we said, 33.33$ is @ below-cost price for UT02, still remember?
Why we do this deal? There is no more excuse for sales but sincere thank-you and best wishes, here.
We had some problems in the coupon system serveral days ago, you found and made kind comments here, and really gave me the chance to fix.
We had bugs existing on the site when F2 was in flash sale @ 9.99$ last Satutrday, you could not enter the deal access, so did I.
But you encouraged me and when it was fixed, you seized another chance to support me, 100pcs F2 was selled @ about half a day 
Actually, you helped me a lot, not only from these points I mentioned.
This is another way, for myself, to have a good start again from my past.
It is a cheering way, which maybe unfair to you and others who bought the item as the flash sale price.
The 50pcs quantity has to meet the need of more than 10 forums members, that is, not everyone who wanna buy it, can finally get it @ 29.99$.
So, I am here, to say sorry to you. We will try to better service you and make compensation for you from other ways ( giveaway will be organized every month,next time, we may choose more winner, and I will apply for woder budget for your gift ).
Thank you all 
Gearbest
