I have just received an e-mail from Vodafone with this content:
4 October 2006: We have a technical issue affecting our Prepay customers, particularly top ups, account balance information and delays in charging for text. We are working on fixing this and should have it up and running soon. We apologise for the impact on customers.
Customers will be charged as usual for all services during this period as soon as full service is resumed.
Be warned, and let everyone else know, to avoid the previous fiasco. Also, chiefie noted on his blog that Vodafone has posted a warning on their website.
UPDATE: This problem occurred in the early hours of this morning (4 October 2006).