customer service has become appalling in this country over the last 10 years
Honestly? I have never had terrible service, ever, that I can remember in my adult life. The worst is incompetent (series of silly mistakes in a restaurant, or things packed so a 3 litre bottle of milk is put in with apricots and fresh figs and raspberries... yes, Ocado, I mean you) but when I've complained, the staff always bend over backwards to sort it out. My Waitrose delivery came last week and the bloke saw I was pregnant, and so he left me a box of chocs as well as the current free gift champagne, as an extra gift. Cashiers, wait staff and bus and train drivers are amazingly kind - I ended up leaving a box of chocs for a bus driver just before Christmas, because I managed to leave my Canon DSLR on the bloody bus and he realised, kept it, then handed it in with a description of me to ensure it went to the right person. And as I couldn't even recall exactly where I left it I also called Waterstones, and a lovely young man ran all over the shop for me, a week before Xmas, checking everywhere I'd been just in case I'd put it down there, while I was on the phone. He, too, went to a ton of trouble - and they had earlier on, when helping me pick out presents, too. I couldn't tell you if people always remember to say please or thank you when serving me as a customer, but I can tell you they are always warm, kind, friendly and engaged. I love service in this country because it's spontaneous and genuine - not always so in the States or Australia, where it is more professional, but less equal and sincere.
I think if you treat people with respect and courtesy, they will almost always repay that in absolute spades. And I can only suspect that if you do the opposite, then you'll get what you give.