Hi chubbychucky
hmm, I've had to ponder this with a few colleagues. I can understand the logic behind this as it would be easier to administrate to your account.
Unfortunately you can't.
You need to have 1 account for 1 number when using Vodafone's Top Up and Go broadband. This has been setup for security reasons. It may also be worth nothing that you can only have 1 credit card registered on 2 numbers.
Have you seen our
TopUp and GO help page? It's full of useful information for queries concerning topping up.
many thanks
BenJ
eForum Team