Chargebacks After AEP

I'm relatively new to the business. This would be my second year as a Broker and I wanted to know, as we enter the new year, any MA switched with an effective date 01/01/16 does that constitute a full chargeback, let say even though someone was signed up 01/01/15 and stayed on the plan up until 01/01/16?

I also wanted to know if it really is 9 months after the effective date that an agent wont receive a full chargeback.

Source of insurance-forums.net