Amazon India — charge on my credit card bill

Address:

71301-4633

I have a charge for $12.99 on my credit card bill for january 21, 2019 transaction. I cancelled amazon prime months ago because they were charging me for prime and i didn't order it. The price of it is to high and i don't order much from amazon in the first place. I am requesting a refund for this invalid charge. It is listed under amazon prime and the site is amzn.com/billwa, reference number 5731 on my statement. I had a hard time cancelling amazon prime which is very frustrating in the first place. The site is somewhat odd and obviously easy to add to a person's account or order without their knowledge. I have heard many good things about amazon but after my experiences i am definitely not in agreement.