Curious.
After VPay had issues with Firefox and Edge - I have spent around 2 hours on the phone to them. Many screen shots later it ended up that they created the account for me and noted that even though they normally never do this, as you can only use one email address EVER, as long as I spend the money quickly there's no problem.
I asked why the point-of-sale did not spell this out?
"We are just contracted as a 3rd party to manage the tech for them. It is an off-the-shelf system that does not allow any changes once set up. So, for example, you cannot ever change your password. Which is why we will not create an account for someone."
After I mentioned that it was now two weeks and still no solution - perhaps an exception could be made....