Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Your (Dave) last response only reaches error 404 which is why you haven't heard back from me.
I need direct assistance one-to-one because I am going round in circles.
Trying to (re)install MathType directly takes me to MS365 which does not recognise my account even though I have opened my account. Then MS365 does not recognise MathType as an Add-in.
I think I should be given some recmpense for 6 weeks of being unable to use MathType, due to MS mess up somewhere.
JohnM