There are more than 50 vertical markets in which businesses have been reluctant to embrace payment card acceptance. The customers of those business are referred to as “captive audience” markets. They have few or no options when paying for rent, condo fees, car leases, private club fees, supplies or services for a business, and more. Plastiq offers a service to payors who are members of a captive audience and want to use credit or debit cards. It will receive payment in full by credit or debit card for any invoice owed and makes payment to the biller by ACH, wire transfer, or paper check...