In todays date we can use instruction as mentioned below:

Anyone who's using any trouble with BlackBerry® Services on Vodafone should address their issues to bbsupport@vodafone.com including PREPAID Users.

Postpaid users also have the option to call on 55666.

Vodafone Store as on date do not have a separate support for both Prepaid & Postpaid.

bbsupport@vodafone.com