Yu Televentures — repair not done within 25 days

Address:

173205

Very bad service by yu customer care
I submitted my yu device 5510 a for repair problem not switch on before 25 days in service center he committed me your device repair within 10 days. After 10 days i call service center after 10 days for mobile status he says no repair please wait 5 days. After 5 days i call service centre again answer please wait 5 days. I am very dispointed when complete 10 or 5 days. Please help any one for this problem. My device imai no is... 2478914