Lightinthebox.com - Duplicate and Low quality product received

Dear Sir/madam,
I had purchased a shower from Lightinthebox.com on dated ** November **** for my new house which was under construction at thst time..after getting package i noticed that the product is not as it is described in the website. I raised complaint ticket to their customer service department regarding that, and after many discussions they have only refunded me ** percent amount of my total amount spent. Now my construction work is over and i put the shiwer into place in my new bathroom, but suddenly i realised that it is not even working, water is getting out very slowly and in very small amount..
Now i again resigter complaint to their customer service representative..and the case goes to some Mr. Alexandru named representative...he is totslly making fool of me..first they have further offered me ** percent discount then suddenly this Alexandru comes to front snd started agruging with me..he have no solution for me..
I want this person Mr. Alexandru out of this company because due to representatives like these companies loose their reputation..
And please i want my money back..I have spent huge amount to fulfill my dreams but this representative Alexandru put all water on them. I again humbly request you to please do something hard to let them know so that they cannot cheat aby customer in future.