Money Saving Expert Martin Lewis has issued his 'golden rule' to anybody with a Tesco Clubcard. It comes after Tesco issued a 48-hour warning to all card holders.
Earlier this week the supermarket giant warned that £15million-worth of Tesco Clubcard vouchers will become invalid after today (May 31). Today is the last chance to use them up for many.
However, Martin Lewis has issued a piece of advice to bypass this. He says his 'golden rule' can both prolong the vouchers, as well as triple their value.
