NEW: High street retailer Shoe Zone has announced it will close stores, in a move it claims is due to the impact of the Autumn budget. In its latest trading update, the discount footwear company said it had experienced "very challenging" conditions recently, due to weakened consumer confidence and bad weather. On top of that, it said it would incur "significant additional costs" due to the increases in employer national insurance contributions and the national living wage set out in the budget.