Supplier Setup- Error: A supplier with the same supplier name already exists

Hi

User is registering a new supplier 037 FILMS LIMITED. The user entered supplier name, address and other additional information and then click 'Save & Continue' an error message pops up stating 'Error: A supplier with the same supplier name already exists'. We checked to see if this supplier exists by supplier search, New supplier request, Enable As supplier, checked if the supplier is a customer and even checked the supplier table: AP_SUPPLIERS. Is there another way to see if this supplier really exists?