HDFC Bank Ergo General Insurance — cancellation of my health insurance policy

Address:

600039

Hi,
I'm sandhiya
Now i'm received message like, my pol ref no. Hn[protected] is due for renewal on 24-aug-2018 for premium rs. 9867 and will be charged to your hdfc bank credit card in the last 1 day, as one time payment or emi as per hdfc bank guidelines (Interest as applicable).
I want to cancel my policy, and already i have spoke with customer care executive, they said ok. But again i received this message.
So. Please cancel my insurance policy and please don't charge any amount, if cahraged please refund my money to my credit card.
Regards
Sandhiya g