AO Smith — amc amount taken but service not providing

Address:	E-mail ID : [email protected] , [email protected] , contact no : 18001032468 (Toll free number) or 18605002468
Website:	www.aosmithindia.com/register_product_warranty.aspx

I have purchased AO Smith water purifier
Model : AO Smith X7
I have purchase the AMC.

Contract No : IND-023969
Contract Validity : 25/09/2018 to 24/09/2022

But they are not providing service as I am bound to buy water from outside venders.