... if you look at Businesses that are consistently top rated for Customer Service you will find the likes of John Lewis, M & S, Amazon, Waitrose, ........these are hardly small businesses, but they have made a commercial decision to make a culture of good customer service one of their differentiators/USPs, and they exist in highly competitive environments where a bad customer experience means that customers will transfer their business to a readily available alternative.
Running the likes of John Lewis, M&S, Amazon, Waitrose doesn't require decisions to be made at the drop of a hat, an instant outcome. They may have hours, days, weeks, months to resolve customer issues.
Firstly, I must declare my personal interest here: I work for Waitrose.
Waitrose is the retail grocery arm of the John Lewis Partnership - so it's probably not fair to treat them as two separate businesses, when comparing them with (just for example) First Great Western.
But I can assure you that I
have been required to make decisions, "at the drop of a hat" to provide an instant outcome to the satisfaction of my customer: I certainly don't have "hours, days, weeks, months to resolve customer issues" as a delivery driver.