Vu Televisions — Video is not coming in my vu tv only audio output is there

I have purchased VU led tv 2 years back. Suddenly it's vedio output has stopped working, only audio is coming and I can see only black screen. I contacted vu repairing center in my city Bhopal. The technician came and told that there is issue in panal and took the tv to their workshop. It's been more than 4 days and now they are saying that the motherboard is damaged and they have to change the motherboard and now I have to spend around 5500 rs for this. This is so disappointing that only within 2 years this tv stopped working. I don't know whether these TV repairing centres are just making money by fooling their customers or there is really such big issue with VU TV. Kindly look into this.