I do agree with you that the purpose of the customer satisfaction survey is to achieve effective quality management by monitoring customer’s satisfaction. As we need to trend all the results and present them during our Quality Management Review,
I have reasons to believe that it would be best if we can use the same survey form (with the same measurement scale).
I have compared both forms and they have largely similar contents and the only significant difference is the measurement scale.
NPS Tokyo form uses (1-10) whereas NPT form uses (1-5).
If NPS Tokyo is unable to change the survey format, let me check with NPT if they can adopt your format.
Thank you for your help on this matter.