Mata Electronics — Ruined Canon 100-400 lens

My Canon 100-400 lens was ruined by these guys i have sent it for basic cleanup and fungus removal and they totally replaced original components with damaged, I found the problem after I sent it for re check with CANON master service center, they gave me a quote of 40k and suggested me not to invest into it anymore because of the irreplaceable damage these guys have done to it. These guys lure us through google marketing along with just dail so dont fall prey to these unethical people and loose your valuable gear, as all the photography lovers have a great emotional connection with their gear be cautious while checking for service centers online and always take professional's advice when you are sending your expensive gadgets.