TVS Motor Company — complaint for extra charges and rude behaviour

Address:

401202

I gave my vehicle tvs zest 110 for its first free servicing on 6th jan 2019. The service center informed that various things were needed to be done on my scooty which included oil change, engine flush and b. Coating (This one was performed without my permission). I was being informed that all the charges totaled to a sum of rs. 750. The charges for engine flush and gear oil were not being told to me and i was told that these services were compulsory.
When i went to receive my vehicle the receptionist and boy in charge of servicing acted rudely with my dad and were pushing all the blames on me.

According to my information all these services should not have costed more than rs 500

Following are the details
1. Vehicle regn no : mh48bg5330
2. Vehicle chassis no : 15615
3. Invoice no : vsw/06926/18-19
4. Gstin: 27abbfm1374r1zr