Tata -Nano — Non Payment of interest on booking amount.

Address:

Himachal Pradesh

Hi ,
My uncle had deposited Rs 1.40 Lacs booking amount for TATA Nano in April 2009. He received interst of Rs 2904.00 for period[protected] to[protected]. He got delivery of Nano on[protected]. He has not recived nay interst for the perod of June 2009 to Aug 2010. Complaint no UI no[protected].
Inspite of no of telephonic enquirys no reply has been received nor issue is resolved..
Can anybody help.????????