Koryo — Air conditioner pblem reg

Address:

Advanced Materials Technology Dept.,CSIR-IMMT,Bhubaneswar

Air conditioner purchased on 14/08/2019 bearing invoice no.[protected].As per the terms and condition the warranty period is up to 14/08/2020.
I lodged a complaint of having problem of AC tripping on 8th Aug. with complain no[protected].The service engineer suggested for gas refilling after observation of the issue.
Although above issue is within my warranty period still I am asking for giving 60% of the total amount of refillng of gas as directed by service center.
As the company has approved only 800/ for gas filling so rest amount should be covered by customer.
So company should look into these issues and do necessary action.
Under warranty period, the customer is not entitled to give any charges for refilling.
On what basis, company can ask for this within warranty period.
Hope the company will consider it .