Dear Sir/Madam,
I purchased a bottle of drinking water from a restaurant. The printed price on the bottle served was Rs. 15.
But in bill the amount was charged as Rs. 42 for the "packaged drinking water".
And there was an extra service charge on the total bill, so i assume that Rs. 42 doesn't include any service charge. I am also carrying the bill with me.
What should i do now?

Thanks & Regards.