QB Issue Resolution:

I’m not sure which chat you reached (normally QB does not offer a chat feature), but the Support hours are:

Open Hours: 6am-6pm (PST) Mon.-Fri. 6am-3pm (PST) Sat.

You can get the correct number for your version/question here:

https://community.intuit.com/announcements/1220157

Resolution for Issue 'I had a terrible interaction with the support chat and would like to complain. They insisted there were no available supervisors, how do I get in touch?' available: Yes (Solved).
Source: Intuit Community forum.

I had a terrible interaction with the support chat and would like to complain. They insisted there were no available supervisors, how do I get in touch?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for available supervisors
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Error Recovery for available supervisors [Canada]
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