Pay Invoice GAA appreciates your timely payment for services rendered. Please mail checks made out to Granby Ambulance Association Granby Ambulance Association 1 Pegville Rd. Granby, CT 06035 Pay Online Payments can be made online through our payment provider portal. For billing inquiries, contact Digitech online or by calling 1.855.693.1972. To obtain copies of your medical records, contact Liz Hayes at firstname.lastname@example.org.