(a) Except as otherwise provided by this section, the amount of insurance on a debtor’s life under the policy may not exceed the amount of the debtor’s indebtedness.

(b) Subject to Subsections (c) and (d), the face amount of any loan or loan commitment, totally or partially executed, made to a debtor for educational purposes or to a debtor with seasonal income by a creditor in good faith for general agricultural or horticultural purposes, secured or unsecured, under which the debtor becomes personally liable for the payment of the loan, may be insured in an initial amount of insurance not to exceed the total amount payable under the contract of indebtedness.
(c) If indebtedness described by Subsection (b) is payable in substantially equal installments, the amount of insurance may not at any time exceed the greater of the scheduled or actual amount of unpaid indebtedness.
(d) Insurance on a loan commitment described by Subsection (b) that does not exceed one year in duration may be written up to the amount of the loan commitment on a nondecreasing or level term plan.