An HMO may include in an individual contract any of the optional provisions described in Regulation .07C and D of this chapter and §C of this regulation. An HMO may not include in an individual contract an optional provision dealing with the same subjects set forth in Regulation .07C and D of this chapter and §C of this regulation if the provision is drafted in a manner that is less favorable to the subscriber or member than the corresponding optional provision set forth in Regulation .07C and D of this chapter and §C of this regulation. Unpaid Premiums. An individual contract may contain the following provision: “Unpaid premiums: Upon the payment of a claim under this contract, any premium then due and unpaid or covered by any note or written order may be deducted from the claim payment.”