Tesco’s chief executive Dave Lewis has hailed a “strong Christmas” as its UK sales rose 1.3% on a like-for-like basis in the six weeks ending 9 January. However Lewis blamed its decision to drop the “£5 off £40” marketing promotion for contributing to a sales fall of 1.5% in the third quarter. The festive performance by Tesco is way ahead of analysts’ expectations, with the City predicting a sales fall of up to 3%.