Theres a number of Vodafone reps visiting forums and giving advice. Unfortunatly they tend to use more than one username.
What Id like to do is contact them (probably VIA pm) and ask if they can validate themselves, an email from a vodafone email address should do it.
Once a username is validated, they could be given rep status, perhaps something saying 'Vodafone Rep' where it says 'Registered User'. I dont know how to do this however.
Worth doing?