Mass. Gen. Laws ch. 171 § 49
Whenever a credit union, as a consequence of a default of a debt owed to said credit union by a depositor or shareholder, makes a transfer of funds of such depositor or shareholder to reduce or extinguish said debt, such depositor or shareholder shall be notified forthwith of such transfer by written notice sent by first class mail or electronic mail, directed to his last known address; provided, however, that if the debt is the result of consumer credit granted under the federal Truth in Lending Act, 15 U.S.C. 1601 et. seq., any required notice shall be made in compliance with the federal law and the regulations promulgated thereunder. A depositor or shareholder to whom such notice has not been sent shall be entitled to recover the amount of any actual damages.
Mass. Gen. Laws ch. 171, § 49