One Mystery Shopping Programme found £36b Lost Revenue?

One Mystery Shopping Programme found £36b Lost Revenue?

Recent research from Retail Economics and GFS identified £36bn of lost non food online revenue in 2025, driven by delivery related friction at checkout. This is the result of a structured mystery shopping exercise carried out at peak trading, where real customer journeys were tested across 100 UK retailers.

The findings highlight a consistent gap between what customers expect and what is delivered. Nearly six in ten shoppers report abandoning a purchase when delivery options fail to meet their needs; among higher value shoppers, that figure increases further.

The report highlights several critical factors.

• Poor delivery options caused high value shoppers to abandon more than one in four of their shopping carts in 2025, compared to just over one in five across all shopper types.
• Sixty one percent of shoppers value delivery choice over delivery cost.
• High value shoppers expect to see five delivery options at checkout, yet the average offered by retailers is 2.6.
• Seventy three percent of shoppers are less likely to buy again from a retailer that fails on the delivery promise. The mystery shop found that 29 percent of retailers either missed or nearly missed their stated delivery window.
• Three in five shoppers have abandoned a purchase or a retailer entirely because the delivery experience did not meet expectations.
• Seventy six percent of high value shoppers are willing to pay more for premium services, yet 15 percent of retailers offer neither next day nor express delivery.
• Shoppers cite £3.50 as the upper acceptable limit for standard delivery, however 77 percent of retailers charge more than this.

In many cases, the delivery experience is not delivered by the retailer itself. It is executed through third party providers who represent the brand at the final point of interaction. This introduces a level of separation between brand promise and delivery reality but from a customer perspective, that distinction does not exist. The entire experience is attributed to the retailer.

This raises important questions. Are retailers confident in the performance of their delivery providers? To what extent is the delivery experience actively managed, measured and enforced across delivery partners? Where standards are defined, how consistently are they upheld in practice? Where failures occur, how visible are they and how quickly are they addressed?

The research demonstrates the value of structured mystery shopping programmes in answering these questions. By testing real journeys under real conditions, they provide a level of insight that internal reporting alone cannot achieve. They expose the gap between intended experience and actual execution, and crucially, they quantify the commercial impact of that gap.

For retailers, this is not simply a question of operational efficiency. It is a question of revenue protection and growth. Customer experience and customer spend are closely linked. Where the experience meets expectations, customers complete purchases, spend more and return. Where it falls short, the impact is immediate and often permanent.

At Serve Legal, our international and local mystery shopping programmes support some of the most recognised names in UK retail and hospitality to understand and improve their customer experience across the entire journey, including delivery. By providing independent, real world insight at scale, we help businesses identify where experience breaks down, strengthen accountability across delivery partners, and ultimately protect and grow revenue.

If you are not measuring the reality of your customer experience, you are relying on assumption. Speak to Serve Legal to understand how a structured mystery shopping programme can give you the clarity and control needed to close the gap between brand promise and delivery.