Lava Mobiles — not mobile given

Address:

Jalgaon, Maharashtra

have submitted my lava iris X1 handset on dated 15/8/2015 with a problem of network dropage. At the time of submission of handset attended told me to resolve the problem within 10 days but now a days they told me to repair my handset after 15 to 20 days. This is not the way to deal their customer like this.Please resolve my problem as soon as possible...