Hyundai Motor India — Service charges related query

Yesterday i have put my vehicle eon gj16cb4318.

Today i paid the service charges bill at your showroom rs.3609/-

In bill there are charges for sanitization mentioned free of cost and your representative explained me sanitization cost rs.170/- which is recovered in other services code of outside job work.

So, i just want to know sanitization is free or chargeable.

With regards,
Vimlesh. T patel
Contact. [protected]

I have mailed same detal on 26/06/2020 to your manager on email id [protected]@gmail.com but no reply received yet.

Please answer me.