Hey PBTannie
I'd recommend checking out the online payment reports available in your file to track down details of the payments received and fees paid for online payments. Select the "Transaction details" report and you'll be able to filter the report to see specific payments. More information on this page.
For future, our AccountRight Priority service team will always make sure to help resolve any technical issues, however, if you have any questions about online payments, that's handled by our financial services team. You can reach the team by raising a support ticket from your My Account dashboard, make sure to select the "Financial Services" category. For other contact options, check out this page.