Hi katesmum
Welcome to the forum.
You might want to have a look at the following FAQ which explains where everything is;
www.benefitsandwork.co.uk/guides-for-claimants/faq/forum As you are in receipt of a means tested benefit, any savings you have over £6k will affect your benefits, this is called tariff income.
Most means-tested benefits are only paid to people with less than £16,000 in savings (tax credits and the guarantee element of Pension Credit are not affected by this rule).
If you (and your partner) are under Pension Credit age and have total capital over £6,000 then the government assumes you receive £1 per week for every £250 of capital you have above £6,000.
If you are over Pension Credit age the government assumes you receive £1 per week for every £500 of capital you have above £10,000.
Gary