The renewed Sparks loyalty programme is available via an updated M&S app from Thursday, July 9 and will offer customers instant rewards, a wider selection of charities to support and more tailored personal offers. The updated Sparks app has already been tested by 40,000 M&S staff across the UK. New features include a guarantee that each week, one customer in every UK store will be rewarded with their shopping free. There will also be member giveaways worth thousands of pounds, along with smaller customer rewards including everything from packs of Percy Pigs to Apothecary Candles. Mirror Online reports that the new scheme is also a digital first and fully integrated online. Physical cards are still available too, but rewards won't be personalised.