In 2015, L-3 Communications (the company behind EOTech) settled with the US Government regarding the performance of EOTech Holographic Weapon Sights. (details).
I applied for the refund of my Exps2-2 and G23.FTS 2nd Generation magnifier in 2016. Within 6 weeks I got a check in the mail for the full purchase value.
The refund request page is here.