Ordering a service through a customer support by phone

I ordered satellite TV service by calling customer support by phone because I didn't have Internet access temporarily.
To make the story short, after all the communications, they put a wrong service and now I have to pay for the extra service I never requested for the next 30 days.

I am even more convinced that it's a better approach for a customer to order and select what he/she wants through web site.

Also I am even more a proponent of easy subscribe-unsubscribe model without long-term contract. There shouldn't be any 1-year contract or 2-year contract. The customer should be able to sign up anytime and cancel anytime without any penalty.

It is very unfair that the majority of my money has been lost throughout my life because I was charged for what I didn't ask for and what I was not supposed to be charged for.

I have lived both in a country with excellent customer support services and in countries/regions with customer support personnels doing whatever they feel like based on their emotion. I hope that the more web based approach would make this cultural difference irrelevant.