I finally received the email replied from the Customer Service after a whole lot of ordeal.

It costs me a lot of money and a lot of time to cancel it. I am facing same issues with Dell services in Singapore, they charges me 50 bucks just to refund the item within 7 days and their technical support is not even 24/7

I am going back to Amazon, I never had any problem with them yet.

Below is my reply,

"Good Day,

It has been really unfortunate that the response from the customer care was so unnecessarily delayed. I spent more than 30 minutes on international calls, incurring tens of dollars on the phone bills, and I was still not able to get any personnel to attend to me.

As a consolation, I got your email and lost 20 bucks over an order that would have cost nothing to cancel.

Please proceed to cancel my order as soon as possible,

I will share my experience with my friends online,

Thanks a lot"