Eureka Forbes — Annual maintenance Contract( But not the Spare parts covered)

I was using this Eureka Forbes RO water purifier for the past 8 years.
Every time I was having the Annual maintenance Contract and all the Filter's and Spare parts covered.
But I renewed the Annual maintenance Contract on 28th Jan 2021 for 2 years
But right now they are telling me that my spare parts will not be covered and it will be charged. They didn't mention anything regarding this at the time of renewal
This is perfectly cheating and I don't expect such a behaviour from a reputed company