I ask because logging in each month to download bills for multiple companies is a complete pain in the ass. Most companies that bill online email PDF's to customers. This allows you to register your accounts department email address so that invoices go directly to them, or to a business unit manager for sign off.
The only other company I know of that uses such a horrible method of online billing is Telecom. I don't want paper based billing because all of our accounting systems are totally electronic, so any paper is scanned and entered into a document management system anyway which just increases admin time.
It's very counter productive to have to login and out of 20 different accounts to retrieve all the bills, whereas with say WorldxChange, Orcon, etc the PDF is directly emailed as an attachment.
It isn't an option to simply put invoices on direct debit and not download the invoices at all because businesses need invoices for records, and one of the wonderful traits of the telcos is that their billing is never correct, and must be checked manually by the customer.