Very poor customer service. I purchased 12 bottles of Bollinger champagne online when on offer. I know the T&Cs but it is obvious Sainsbury’s has a lot to learn from the likes of John Lewis. My order had 12 replacement bottles of champagne that I returned. Customer service said they shop on the shop floor for these groceries - makes no sense - why not use stock in the back? They couldn’t guarantee a correct delivery. Used the instore stock checker - it is inaccurate as 3 stores didn’t have the stock despite saying they did. Found 6 bottles in a 4th store - still within offer period, only suddenly the bottles are 25% more expensive at base price. Shop and online customer service both very dismissive and quoted me T&Cs. They’ve lost a customer of 27 years as it is obvious they don’t value such loyalty.