Barclays is launching a review of its overdraft fees and charges as part of a major overhaul to rid itself of "any sins of the past".In an effort to address customer complaints, the bank is trialling a text message alert service that warns account holders when they are about to go into the red.It has so far cost the bank £1.5m in lost fees, a figure which is likely to rise.The lender will also allow those with multiple accounts to automatically move money around to avoid overdraft fees. The move follows a consumer survey last week that showed Barclays was the least liked and trusted of 70 banks and building societies in the UK.Barclays has been hit by a series of scandals of late. Last week the group confirmed it was facing a £50m fine from the UK's Financial Conduct Authority for its handling of a bailout from Qatari investors. The Qatari Sovereign Wealth Fund invested a total of £7bn in the bank in 2008 preventing it from a government bailout.In an interview with the Daily Telegraph, Ashok Vaswani, Head of Barclays' Retail and Business Banking, said: "I'm going through the business with a fine toothcomb. We want to de-risk the business and clean up any sins of the past." "We really, really have to put customers at the centre of everything we do."Barclays has plenty of cleaning up to do since last year's fine for LIBOR rigging. The company also last week said it may have to compensate 300,000 personal loan customers who were given the wrong paperwork for five years. Barclays will work on its overdraft policy over the next 90 to 120 days. The bank currently charges as much as £88 for savers that consistently fall into an unauthorised overdraft during the month. "The biggest one for me is overdrafts," Vaswani added. "I'm going to do a full grass roots review of our overdraft proposition. We know that this has been a problem which is why we have already launched the text alert systems in real time."Barclays shares fell 2.78% to 265.85 at 15:23 on Monday.RD