In the meantime Redbridge has implemented the legislation requiring them to move to Individual Registration of Voters as opposed to Household registration. This process has apparently reduced the size of the Redbridge electorate by 17,000. So it may be worth checking to see if you are still on it, otherwise you won’t be able to vote.
However, it is not strictly true that “Anyone who hasn’t registered individually since June 2014 will no longer be included on the electoral roll.”
If you were already on the electoral list and your details line up with those held by the Department of Work and Pensions then a normal household registration form is enough. From Redbridge-i
Most people who are already registered to vote will be registered automatically on the electoral register under the new system. You do not need to do anything at this time, except tell us if you wish to be removed / or added to the open register.If you are still not sure you can check with Electoral Services on 020 8708 7171 or 7172
You can now register online at www.gov.uk/register-to-vote. Don’t forget to have your national insurance number as you will need this.
More details here on Redbridge-i.