Formal Complaint Regarding Our Experience With the Self-Scan Service
Dear Tesco ,
I am writing to express my wife’s and my absolute frustration and anger regarding the terrible experience we had at Tesco on Saturday, 5 September 2026, while doing our monthly grocery shopping.
We were pressed for time that day, so we deliberately chose to use the self-scan service rather than the traditional checkouts. As we approached the end of our shopping, our trolley was fully loaded, and we could clearly see that the normal tills were extremely busy, with long queues. We therefore chose the self-scan option because we understood it to be a quicker and more convenient way to complete our shopping.
We scanned the barcode on the self-service screen, only to be prompted for a member of staff. A Tesco employee arrived and informed us that he needed to rescan every single item in our trolley.
What happened next was extremely frustrating. The staff member removed every item we had already carefully packed into carrier bags and placed everything onto the self-service platform so that he could rescan our entire shop. After completing this process, he simply apologised, told us that we could proceed with payment, and said sorry for the inconvenience.
Quite frankly, this was an absolute nightmare.
Not only had we chosen the self-scan specifically to save time, but we were then forced to stand there while our entire shop was unpacked and rescanned. Once this was finished, we then had to repack our entire trolley ourselves. The very reason we had chosen the self-scan service — to make the process quicker and more convenient — had completely backfired.
My wife and I were extremely angry and frustrated because we had been effectively robbed of our valuable time. We had made a conscious decision to use a service Tesco promotes as a convenient alternative to queuing at the traditional tills, yet the experience left us feeling inconvenienced, inconvenienced again, and treated as though we were suspected of doing something wrong.
I completely understand that Tesco has security measures in place to prevent theft, and I appreciate that staff may sometimes be required to carry out checks. However, there has to be a better way of managing this without causing such unnecessary disruption and frustration to customers who are simply trying to do their shopping.
It also raises a very obvious question: what is the point of introducing and promoting a self-scan system as a quick and convenient option if customers can subsequently be subjected to having their entire trolley unpacked and every item rescanned?
If Tesco wants customers to use self-scan services, then the system needs to be designed in a way that balances loss prevention with customer convenience and dignity. Customers should not be left feeling as though they are being treated like suspected criminals simply because they have chosen to use a service Tesco itself has introduced.
We left the store extremely disappointed and angry about the experience. What should have been a straightforward monthly grocery shop became unnecessarily stressful and time-consuming.
I would therefore like Tesco to investigate what happened, explain why our entire trolley needed to be rescanned, and explain what measures Tesco is taking to prevent other customers from having the same frustrating experience.
I would appreciate a proper response rather than a generic apology, as this experience has seriously affected our confidence in using Tesco’s self-scan service in the future.
Yours faithfully