paygpa.com
My PowerManage your GPA Power account online with My Power. To get started, please have your 10-digit account number available. Residential Customers - VISA and MasterCard accepted Commercial Customers - MasterCard accepted. A payment in full is required to avoid service interruption. Gloria B. Nelson Public Service Building, 688 Route 15 Mangilao, Guam 96913. Customer Service: Phone - (671) 647-5787/8/9, Email: customersfirst@gpagwa.com.
http://www.paygpa.com/