Membership questions

I have supported PS2 in the past buying stuff, but membership never seemed the way to go for me. With this new sale, ill be buying my first membership.

That raises a few questions, though.

• Can I cancel the auto-renewal and still get the 500DBC a month?
• How do you claim the DBC?
• What is the Member sale?
• What does the member level do (ie. Auraxium)
• Anything else I should know?