TVS Motor Company — Labour charges taken in 3rd service

Address: SUNDARAM MOTORS LLP, Gudiyatham

We have brought TVS Zest 110cc purple color. in two free service done and in 3rd service they done but they charged labor fee its free until 4th service. i did not noticed bill details in service center. after reached home then i checked bill and i knew it.after they called me for about service feedback i said this issue but they told me we not taken the charges. i mentioned bill ammount and labour fee details they not give proper reason. i really dont know they did my scooty serviced or not (like oil replacement..filter). i need action about this issue. and refund.

I have attached invoice details FYI.