By Emily Hawkins Luxury retailers in the West End are eager to elevate the shopping destination among its global rivals by appealing for tax changes to be accelerated. After the Chancellor suggested VAT-free shopping could boost the retail heartland from 2024 last week, the Association of International Retail said could be introduced in the next six months. The policy would move the country’s retail hotspots, including airports and Bicester Village, “back on a level playing field,” Paul Barnes, head of the business group, told The Telegraph newspaper. Shoppers have previously shunned London in…