Sony Xperia Sola — delay of repair

Address:

Thane, Maharashtra

my mobile phone`s touch pad got damaged and i had given it at the sony service centre for repair on 22/3/2013 and i had been told that it would take 7 days for the repair and after 7 days when i asked for my phone they told that it would a further 3-4 days for the repair and after this due date when i enquired once again i had been told that it would again take a further extension period 5-7 days as the parts were not available at the nearest so the parts were to arrive from the head office located at chennai and when i enquired again today on 06/04/2013 they are again asking for a further extension till 25/04/2013
and i also asked for an alternate device for temporary purpose they further denied at it and now they are saying that the parts are to arrive from sweden, so demand an alternate device till my mobile phone gets repaired,and would like to receive it at the earliest.the details of my phone are given below

name:sony xperia sola
model no:MT27i
IMEI no.:[protected]