Pick Me — no response at all

Address:

Mumbai City, Maharashtra

my phone Sony xperia z1 compact was given for repairs to pick me India solutions on 15th December, 2014 and it has been more 3 months now but every time i call them i do not get a response at all the only thing they say is that it will take another 10 days every time i wait for 10 days and so it has now become more than 3 months but still the same response they are not ready to return my phone back i m very frustrated and don't know what to do i have made more than 25 calls to them and every time they have kept me waiting for long duration and given no proper response in the bargain i have suffered hell lot of money on my phone calls that are all chargeable my registered mobile no. is [protected] please look into the matter urgently i have been waiting for more than a quarter year now i m submitting my complaint with lot of hopes to get it cleared at its earliest or else please suggest me what legal action should be taken