Roughly 4.3 months, about 4 months and 9 or 10 days. The number of days in a month is not fixed, but the average is about 30.4 days per month. Although there are 4 seven-dayâ¦ weeks in a month, there are also leftover days in most months. 2 people found this useful.
Cardholder Support. For assistance, contact J.P. Morgan Customer Service by calling the number on the back of your card. If you do not have your card, please contact Customer Service at 1-800-270-7760 (TTY 1-800-955-8060). J.P. Morgan Customer Service is available 24 hours a day, seven days a week.
Chase Bank - United States (on September 30, 2015 07:31 AM) Chase Bank customer service contact number is 1-800-935-9935. You can call at JPMorgan Chase custoemr servcie number at any working time to immediately talk to Chase Customer care representative to solve any query.