QB Issue Resolution:

This looks like its only available in newly created online files not older versions.

Not available in ESS or SS versions unless its only new accounts again.

Unless its US only but that would not explain why my new Plus UK version has it?

Resolution for Issue 'How to change form name “Invoice” to “VAT Invoice”?' available: Yes (Solved).
Source: Intuit Community forum.

How to change form name “Invoice” to “VAT Invoice”?: 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 Invoice
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Error Recovery for Invoice [Canada]
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