- By Phone:
800-939-9103
Monday-Wednesday: 7:30am-6:00pm
Thursday-Friday: 7:30am-7:00pm
Saturday: 8:30am-1:00pm
Sunday: 10:00am-2:00pm
888-885-8847 for 24 Hour Account Information - For Debit Card Issues or
To report Lost/Stolen ATM/Debit Card:
800-939-9103 during bank hours
833-225-5218 after bank hours - By Mail:
Cornerstone Bank
P.O. Box 370
Southbridge, MA 01550-0370
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