I received a bunch of gh/s vouchers from cex.io today due to their hardware failure they experience and figured i help some people out.
What hardware failure are they for?
Do you have any correspondence from CEX.IO to back this up?
The hashrate dropped to zero for hours.
I heard it was due to hardware i don't know for sure.
You can read it all on the support forum, about the failure.
As for correspondence, i received an email from the support team with an apology and voucher codes applied to me because I submitted a support tixket.
I run 1.5 th/s, so i suffered a huge loss. Around 15 blocks were mined, they didn't compensate for.