My monthly Verizon payment is debited from my checking account on the 26th of each month. Since I am retired and my pension check is deposited in my checking account on the 1st of the month, it would be great to have my payment debited on the first of each month as opposed to the 26th (when I am running short of funds). Can my payment withdrawal date be changed from th 26th to the 1st of each month? If so, who do I contact.