Why it is difficult for large companies to provide quality customer service?

Large Companies Tend to drive their costs as low as possible, this includes the reduction in staff to customer ratio meaning that staff cannot spend time tending to each individual customer as much as smaller businesses because they have been given too many tasks to do to have the time to provide Excellent customer service. Also because each indiviadual customer is not seen as such a loss to business as the company is thriving already customer service is not needed as much as say a local pub where every customer helps pay the bills. At the end of the day all companies are in it to make money and larger companies sacrafice their customer service to make more money, it's as simple as that.