Business ProfileforJ-Technology Corp

My laptop screen stopped working, but i could here the sound from it. I called J-TECHNOLOGY CORP (Located in ***** ***** ************ and told about the issue. He told me its screen issue and would have to order the screen. He told me it'll take $610 to fix depending on the quality of the screen and will take a week to come. I told him to order the screen and paid a $400 deposit towards the screen and dropped off the laptop to his store. Few days pass by and he messaged me it'll take 2 weeks to come. Im being patient and agreed to wait. 2 weeks later agian he borrowed another week from me giving reasons to why screen is not yet delivered to him. After waiting 3 weeks, he gets the screen from his vendor and tells me that my laptop screen is not the issue, the problem is in the my laptops motherboard. He had my laptop for 3 weeks and initially he told me that screen was the problem and now after waiting he says that My laptops motherboard is the problem and more to fix it. He could've told me this within first few days after dropping off my laptop. I finally gave up and confronted him at his store. I took my unfixed laptop from him and asked for my deposit back. He refused to give me and told that i need to pay remaining balace to get the screen. I agreed to pay the balance but on a condition that he provides me the receipt with part number and should test the screen to see if its working. He refused to comply on any of the conditions. So next day i took my laptop to other professional technicians. Upon looking they mentioned its a screen issue and NOT a motherboard issue. I got furious thinking that J-TECHNOLOGY CORP did a fraud with me. I went again to J-TECHNOLOGY CORP to pay the balance of the screen so i can pass it over to other technician to fix it but he refused to give me the screen that I paid for. He tells me if i need the screen he wont give me any warranty. Then how will i know whether the screen is working or not. Now J-TECHNOLOGY CORP is not returning my deposit ($400), Not giving any receipt or warranty on the part he ordered and also has the screen in his custody that I've already paid for. I feel this is a broad daylight fraud happened with me and feel very disappointed with the way he was disrespectfully talking making hand gestures towards me when i confronted him. I have already made a complaint to the landlord he has rented his space from. The landlord too agreed that what he is doing is not right and will talk to him about the matter. I'm hoping that i get justice from Ottawa Police SERVICE after going through