To become a member of the Greater Reading Chamber Alliance, please complete and submit the Membership Application. Pay by credit card: Complete and submit the application on-line (below). Pay by check: complete the on-line application, print out the completed application, and mail it with payment to: Greater Reading Chamber Alliance, 606 Court Street Reading, PA 19601. Make checks payable to “Greater Reading Chamber." GRCA Membership is activated upon receipt of annual investment payment. Contact Melissa Hassler at email@example.com or 610-898-7784.