Online retail sales fell by 12.5% Year-on-Year (YoY) last month – a further drop on August’s -9.3% September’s result came in well below the 12-month average of 17.13% but was also beaten by the 3-month (-10.06%) and 6-month (-6.83%) averages Month-on-Month performance (+2.1%) rose for the first time since the high street reopened but failed…