Amazon Prime Video unknown charge with no subscriptions

I signed up with Amazon Prime Video in Sep 2023 for a free 30day trial, I then canceled within 1hour of the trial. Then thinking everything was cancelled as I got no charge in Oct, Nov, Dec 2023 and Jan 2024, I noticed a charge on my FNB account ending in ****8218 for an amount of R80.81. When I check my Amazon profile there are no active subscriptions and no trace of the charge. I've tried numerous times to get help but agents let me explain the full story and then disconnect me due to technical issues and then I have to start over with a new agent. This happened 4times on one day. I then came back a few days later and the same thing happened leading me to believe that this is a trend with these agents when they can't explain an issue they disconnect you instead of trying to help. Then two of the agents told me that I was contacting the USA Amazon and transferred me to SA - Saudi Arabia customer service while I was in South Africa and I told them this. Just another chat avoidance technique. They also tell me that I need to check my online banking for a charge ID but I don't see this on the transaction in FNB. I can provide screenshots or proof.

mobile number linked to the *** My ID number: ***