And you sound so ingratiated with this shady industry practice that you are unable to separate customer service from human interaction. For example, a self service machine at a super market gives great customer service without any human interaction at all*
Is there a poster on the wall explaining the data plans? Thats good customer service. Are the functional handsets around the store switched on and operational? Thats good customer service (very often, they are not). Is the pricing clear and readable? Thats good customer service.
In this case, being able to browse your data plans/phones without being hounded - thats good customer service.
Do you deny that high street phone shops are structured to minimise consumer freedom, using a pressure selling environment to generate a quick sale that is not necessarily the best deal for the customer?
*subject to scales which never seem to be properly balanced, and purchase of age restricted goods