Iphone 5S issue

Hello,

I bought Apple 5S Gold phone from India. After using this phone for 10 months, I started facing a strange issue with the home button and microphone. Home button was completely disabled for around two days and after that suddenly it started working as normal, it happened 2-3 times. I went to service center one after another but got the same reply as they were not able to detect the problem. I contacted Apple customer care but they were also unable to help. My phone warranty is going to lapse in next 45 days and now I am unable to understand what should I do, where should I go as Apple is not helping me. This is highly unappreciable or unexpected from Apple inc.

Case ID - 813099956

Regards,

Aakash