Aquaguard Eureka Forbes — cheating against amc

Dear sir/madam

I am using aquaguard water purifier in my home, If any issue happened in warranty period, will inform to customer care. Then engineer will come from nearby authorised service center to rectify the issue. Last year warranty expired. Authorized service person called me for long days for renewal AMC. I skipped for some days because AMC amount 9500/- was high, i told to negotiate. After some days he called me to renewal AMC for Rs 7500/- on 04.04.2022 . I accept the same. Payment done through gpay. They didn't gave invoice. now i faced an issue in my purifier, i complained to customercare, they said machine out of warranty you have to pay for attend the issue, i tsaid i was already AMC reneweled, they said AMC not updated in our system. kindly look into this matter & do the needful.