Martin Lewis has issued a 24-hour warning to anyone with a Tesco Clubcard.

The MoneySavingExpert founder was warning Tesco customers on The Martin Lewis Money Show last week.

During the ITV show, the cash-saving guru warned customers who have signed up to the Clubcard loyalty scheme that thy face missing out on a “free boost”.

Martin Lewis warning over Tesco Clubcard Christmas Saver Scheme

He said: "This is your last chance for a free boost.

"Basically the Clubcard Christmas Saver Scheme - you must top it up by next Wednesday.

"What you do, you pay into it and it gives you vouchers to spend in-store - but it adds six per cent on top.

"So, if you know you're going to be spending in Tesco for Christmas you may as well charge that up before next Wednesday and put £200 in and you'll have £212 and it's a little bit of a boost.”

The consumer champion regularly appears on a range of ITV shows including Good Morning Britain and This Morning to give financial advice to viewers.

The Martin Lewis Money Show returns on Thursday night on ITV 1 from 8:30pm.