Hi Guys just need a tad bit of advice

Ive just returned to sunny England after 5 and a half years travelling abroad and visiting family abroad, my problem is that when i left i transfered all my savings i had and moved them to an offshore account as it would be easier to manage my money that way, i had sold all my worldly possesions and closed down all my credit cards and current accounts to avoid temptation of using them with the knowledge i would not have a real source of income for awhile.

I have never been on the Electoral Role (for work purposes) and as im re-entering the same line of work i cannot register, with this in mind i was just wondering if anyone could point me in the right direction of where i could possibly get a current account and credit card to get back on track.

Many Thanks in Advance