QB Issue Resolution:

Contact payroll support for this issue:  https://community.intuit.com/products/payroll-help-en-us

Resolution for Issue '941 taxes were debited twice, but I only got one confirmation from QB' available: Yes (Solved).
Source: Intuit Community forum.

941 taxes were debited twice, but I only got one confirmation from QB: 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 941 taxes
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Error Recovery for 941 taxes [Canada]
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