I bought a pair of light ankle boots from Shoezone Lancaster. They mainly were a cheap spare pair of shoes for use on holiday and in the car. After 4 weeks of light use I started to notice that the surface of synthetic uppers was starting to separate from the main fabric. After 5 weeks weeks they are not remotely waterproof.
When I got home after exactly six weeks, I took them back to the store and the temporary manager refused to take them back or give credit and said they were badly worn and I must have been doing at least my 10k steps a day in them (as a pensioner with arthritis chance would be a fine thing!) I should phone customer service.
Didn't expect them to last for ever but I feel that the six weeks demonstrated the utter rubbish quality of the shoes.