QB Issue Resolution:

not an option, it is different software, you have to cancel one and subscribe to the global version

https://quickbooks.intuit.com/choose-country/

Resolution for Issue 'Change quickbooks version form US international to UK' available: Yes (Solved).
Source: Intuit Community forum.

Change quickbooks version form US international to UK: 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 different software
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Error Recovery for different software [Canada]
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Additional Support Options: