I have had exactly the same problems. I have followed online advice and also that given in a telephone call when I changed my contact for the next 18 months. None of them work and bear little or no resemblance to the advice given. This should be a very simple task and a tick box would suffice for the preferred method of billing to be identified. It appears this problem has been going on for some time and needs to be rectified. Can I suggest that, since you can see your bill online, that your preferred method of billing should be included on this bill and can be ticked to change it. VM can then email the account holder to check their instruction. It's not rocket science!
