TVS Motor Company — Additional charges taken for 'oil supplement' for 1st free servicing

Address:	Pune, Maharashtra, 411041
Website:	www.tvsmotor.com

I've taken my tvs jupiter to the the shelar tvs service center, balaji nagar, pune on 29-may. There i've been charged for 'oil supplement' along with 'consumable' and 'engine oil'.
I've seen, at few other tvs authorized service stations (Like one in bibwewadi, pune), this 'oil supplement' is not part of servicing and also not taken into bill.
Is this oil supplement is mandatory?
Why shelar tvs is by default adding this item and charging to every person who is coming for free servicing.
Also, as per 'free service coupon', labor charges are free but still amount of rs. 50 is taken under the heading 'consumable'.? Along with vat, service tax, and sbc on all the above mentioned items.
Request you to look into this matter and update.

Thanks