Lenovo — Motherboard display and warranty issue

Address:

690502

Hii am amal i show my lenovok4note to kerala karungapally pulliman jn service centre atfer 3 monts my motherboard changed due to camea complaint and after 8 months they changed my mother board due to mic issue... After i told them when i use my set over 20minutes my display slightly begam to blink i requested they to change my display they told me we changed ur motherboard... Only after 3 monts we can change ur display... I dont know why they told to me like... And they dont give my new motherboard warranty... My new imei [protected] when i look on lenovohelp they don't show any warranty
Cell care india, valanthara building, pada north, pulliman jn. Karunagappally,, karunagappally, kerala