I Can't stop my VPC billing for Amazon Virtual Private Cloud Public IPv4 Addresses

Hello.

Please make sure that no public IPv4 addresses remain in your AWS account by following the steps introduced in the blog below.
https://aws.amazon.com/jp/blogs/networking-and-content-delivery/identify-and-optimize-public-ipv4-address-usage-on-aws/

If you have accrued these charges in the month already (because you had Elastic IPs before), this will not disappear from your bill. The on-demand billing works hourly, so whichever charges you accrued throughout the month will stay. If you deleted the resources, make sure that you don't accrue any additional further charges going forward (if you deleted everything - you shouldn't).