Tata Motors — tata tiago free updation of tank

Recently received call for my tiago free tank updation from vst motors, and ask me to bring the vehicle to chennai. I told that i bought & servicing my car in cuddalor & neyveli, so let me update my car here itself. Customer care said we will reply. But so for no phone call or intimation received, so please look in to the matter and let my car get the updation in neyveli or in cuddalore itself.
Awaiting for your reply
Andre. Neyveli township.