Customers & Suppliers Receipt of bills (information for PSI customers) As a private person or a business customer you will receive your PSI bill electronically and paperless. PSI uses the service of Billexco for this billing-system. Suppliers All external services are managed centrally by Paul Scherrer Institute. For our suppliers, a few things should be noted:
Receipt of bills (information for PSI customers) As a private person or a business customer you will receive your PSI bill electronically and paperless. PSI uses the service of Billexco for this billing-system.
Suppliers All external services are managed centrally by Paul Scherrer Institute. For our suppliers, a few things should be noted:
