Gaming need help setting up vodafone 3g in the uk

[gbasource]

Hi, im trying to set up my vodafone uk sim with my ps vita. Vodafone uk appears as my operator on the ps vita but I have trouble with topping it up so i can recieve my code for wipeout. I go onto the vodafone page from the network operator menu then no matter how i try to top up, it says i need to make an account. during the sign up process, i enter my ps vitas number then it tells me a security code has been sent which i will need to confirm my account registration. I never recieve the security code on my vita. Has anyone managed to top up their vita with vodafone and recieve any of the codes? I want to top it up with a top up voucher.