It seems you are having extremely bad luck 
I feel sorry
More from my new Bitmain favorite Valerie
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Thank you very much for your feedback which I've already escalated up to our management this morning and we really do appreciate your comments and information very much.
This means new products may quickly be challenged by products that are faster or more efficient. We trust our customers to follow developments and make sound purchase decisions based on their specific needs. There are still valid reasons for choosing the B3 ASIC miner over GPU mining.
You made some salient points in your email, but we cannot address them without getting into a discussion of our internal development processes.
We understand your position and would like to thank you again for your valuable input.
Valerie
I feel sorryMore from my new Bitmain favorite Valerie
--------------------------------------------------------------------------------------------------------------------
Thank you very much for your feedback which I've already escalated up to our management this morning and we really do appreciate your comments and information very much.
This means new products may quickly be challenged by products that are faster or more efficient. We trust our customers to follow developments and make sound purchase decisions based on their specific needs. There are still valid reasons for choosing the B3 ASIC miner over GPU mining.
You made some salient points in your email, but we cannot address them without getting into a discussion of our internal development processes.
We understand your position and would like to thank you again for your valuable input.
Valerie