My opinion, these big company are making millions of $ from selling their services at a really high price(compared to the states) and it's not because they are giving a $80/month discount that they will lose their shirt. I'm a fair type of guy and if I get what I'm paying for I don't mind giving the money out to them. The only thing I've always been afraid of was if they discover their own mistakes they might want to send you a bill after 10 months and say "We are sorry for the mistake but you now owe us $800.00 for what you received".
That would suck big time...
Just saying...