Lenovo — Laptop motherboard faulty

I bought my lenovo yoga 13 laptop in august 2016. Just few months passed and it started showing all the possible problems. Touch scrren not workong, none of the usb portals are working, camera and bluetooth hardwares missing and what not! I had purchased this laptop from Dubai, UAE, from sharaf DG store. I had sent this laptop to the local service provider for Lenovo - Jumbo electronics and they said motherboard is faulty and would charge me lot more than the price at which the laptop was bought by me. I am fed up. This problem was detected in February. In less than 6 months if this is the case, what kind of laptop is this? I tried contacting your toll free numbers, none of which works!. Please revert back to me what can be done, else i will need to file a case against lenovo! Nothing less than that!