Instead of a class action which will cost us $$ for attorneys fees (major $$$ taking on the post office and I am afraid my pockets arent deep enough) why not take the matter up with the Ombudsman responsible for the Post Office.
Also the press might be interested in another scandal with an arm of the Government.
Furthermore, the Industry Canada is responsible for controlling price fixing, false advertising etc. this used to fall under the Combines Act as well however there are several avenues to persue.
I guess with the class action, we could make claims for damages and loss business.
I for one, shut down 80% of my guitar business in the spring because of Canada Post and a change in their biulling practise with my account.
I wonder if we could get UPS to pay our legal fees to sue CP?