Does anyone having problem with AWS billing for ubuntu pro?

The figure in the screengrab from AWS Billing on your account matches exactly https://aws.amazon.com/ec2/pricing/on-demand/

So the question to ask is why that set of figures doesn't align with those on the Ubuntu page on AWS Marketplace. Albeit the "Pricing Information" section includes a disclaimer twice calling it an "estimate". And the set of figures in that section are more like those on https://ubuntu.com/aws/pro and in the datasheet at https://assets.ubuntu.com/v1/f8087897-Ubuntu_Pro_AWS_07.12.21.1.pdf both of which are obviously Ubuntu-maintained and not AWS-maintained.

It would be interesting to know if the figure on Marketplace constitutes an offer by AWS to sell the product/service at the indicated price, or whether it's just an indicative "best efforts" guess by Canonical and not enforceable on AWS (note that the EULA link on the marketplace page opens a link to an agreement between the customer and Canonical, not AWS).

Thanks for your response. I missed the EC2 pricing information. I agree, AWS needs to clarify why they have two pricing information on their website, whoever maintains it. The difference is material enough to require an explanation.

The second question is why the ec2 charge was for 10.83 hours while the savings plan credit was for 5.05 hour as provided in the screen capture. These two should match as well, unless I am missing something. If the credit was given for 10.83 hours, the difference would have washed out.