Support hours for QuickBooks Online vary depending on the specific version you are using and the option available, @Stu O. Let me clarify this for you.
 

To clarify, phone support and the option to set up a callback for QuickBooks Online (QBO) whether you are using Sole Trader, Self-Employed, Simple Start, Essentials, Plus, or Advanced are not available on weekends. 
 

Phone support is offered on weekdays from 8:00 AM to 7:00 PM, and you can set up a callback from 8:00 AM to 6:00 PM on weekdays.
 

If you need assistance on weekends, we encourage you to reach out through our chat support, which is available for all users from 8:00 AM to 6:00 PM. Alternatively, you can also submit your questions or concerns in this space. 
 

For immediate assistance, consider contacting our phone support during their operating hours. Just keep in mind that high call volumes during peak hours may affect availability.
 

For more information on our support hours, please refer to this article: Get help with QuickBooks products and services.
 

Additionally, reconciling accounts is crucial for maintaining accuracy in your financial records and ensuring they align with your bank and credit card statements. For guidance on this process, please check out the article: Reconcile an account in QuickBooks Online.
 

Please don’t hesitate to reach out here in the Community if you have further questions about managing your transactions, including matching, categorizing, or reconciling them. I'm here to ensure that everything is taken care of for you.