Ah, the short winter days are ****, my biggest hate of the UK.
I don't think you can register on voters roll while on visa, you may have to check though.
Is the phone account PAYG or a contract? You want a contract so that they begin updating you credit profiles.
Loqbox is a service I used to also build credit. It's basically a "loan" except you never get given the money you "loan". You pay into an account every month to pay off the "loan", and they update the credit bureaus with the payments. I think I did £500 over 12 months. At the end of the term, you can cash out the amounts you paid minus I think £35 as a fee.
Once you have a a few of months from above, you can then register at the 3 credit bureaus (Clearscore, Experian, Credit Karma aka TransUnion). They will want 3 years address history, so just bullshit it and give your address you have been staying at for a 3 year period.
Have you opened a bank account at a high street bank (Lloyds, NatWest, HSBC, Barclays, etc)? If not, you should!
Also, as you don't have a job, I wouldn't apply for credit card until you have at least 6 months of history on credit bureaus. Once you have a job, probably wait 3 months before applying at your bank where the salary gets paid into.
What else? Did you bring any TopDeck with you?
