By Amber Murray One of the UK’s largest retail bodies has warned that retailers could suffer in the next few months during the run-up to Christmas, due to a lack of consumer confidence in the economy. Confidence slumped in September, with an increasing number of Brits saying they expected the UK economy to get worse over the next three months and would adjust their purchases down, according to the British Retail Consortium (BRC). A third of consumers said they expected to spend less on clothes over the next three months, and around a quarter expected to spend less on electronics, beauty, and e…