A woman spent just £2.50 on a genius product that got rid of unsightly ‘blue’ mould which ‘looks like wallpaper’ after spreading rapidly following a leak – she ‘could not believe’ how well it workedA woman spent just £2.50 on a genius product that got rid of unsightly ‘blue’ mould which ‘looks like wallpaper’ after spreading rapidly following a leak – she ‘could not believe’ how well it worked