Online bill pay is here! You can pay your Wisper bill at your convenience, but first, you must set up your account. Call (800) 765-7772 ext. two and ask to set up your online bill pay account. It is entirely free to use this service. Once enrolled, you can view your information and pay your bill at any time, from anywhere. Prefer to make payments over the phone? We can process any amount over the phone for an additional $4.99 fee.