The recent freezing weather has damaged retail sales on the High Street at a time when the industry needs them the most. According to the Master Card Spending Pulse survey, March spending rose 1.3% year on year, a 2.3% dip compared to Febraury's growth. Many well-known high street brands are closing stores and slashing jobs. So what exactly is causing all the turmoil and what do experts believe that retailers should do to halt the decline?