Maxbhi / Elcotek Telecom — Product purchased from Maxbhi.com spoiled entire handset.

I purchased a front glass for letv le 1s on[protected] from maxbhi.com (order no. 5071143).After combined it with display the menu-home-back button connector got shorted.The entire combo got damaged.It is not possible to find such defect before the glass attaching to display.The display is entirely damaged and cannot be irreparable.
The phone is precious for me. I want reasonable justice from Maxbhi.com.