Money experts are issuing a “wake-up call” savings warning as Britons are leaving their cash languishing in low-interest accounts. New research conducted by finder.com found that savers are keeping their money in accounts with interest rates that fall well below the base rate. Earlier this month, the Bank of England’s Monetary Policy Committee (MPC) narrowly voted for rates to be slashed from 5.25 per cent to five per cent. High street banks have already begun to cut savings rates in response to the central bank’s actions which means savers have little time left to snatch record high interest….