Leather set 2015/2019

We purchased Capone 3 executive black leather lounge set in 2015 it started to show peeling in sep 2015 because it was under warranty set was sent back for repairs. During back and forth set got worst has company in question couldn't repair set was replaced after Mr R Gandon from store had a look at set. Now 2019 and this new set also peeling and tearing when complained to store it's now out of warranty and nothing can be done repair cost will be our own. Fair enough but my question is to what extent should we repair when new set is supposed to be full leather why tear or peel. Disgusted with company after sale service when dealt with them in 2015 and sad to say service as gotten worse don't sell people **** under title of full leather