@Tractorboy
Now I am going to stick my neck out here and make a bit of a supposition. I am not a VM employee and so am not in a position of definitively say this is correct, but I have seen this sort of thing before and really, really do know what I am talking about!
There is no ‘fix’, there isn’t ever going to be ‘a fix’.
VM is an amalgamation of many, many precursor companies and it really wouldn’t surprise me to find that the underlaying IT infrastructure is a mess and held together with spit and sticky tape!
So imagine this scenario.
VM’s marketing department decide it would be a good idea to offer Netflix as an incentive, and for the majority of users it probably works OK. But for a minority it doesn’t on account of oddball legacy account setup, and requires a bit of manual effort against every single account to resolve. There is no ‘global fix’ because that simply isn’t the way it works.
Fine, OK now let’s imagine that VM assign, oh, say, two engineers to work through everyone’s accounts and apply the individual changes to each, alas because it is a slow process it will take three years (disclaimer, complete guesswork, I have no insider knowledge) to work through every single affected account.
Now as I say, complete guesswork and supposition, but does it happen to conform with what you have observed in reality!
