At Gaz Propane Rainville, we used on-board computers to bill our clients. The meter on the truck is directly linked to the computer to calculate your propane gas bills. The data is sent electronically to our servers several times a day provide you a copy of the bill at the time of delivery, either by email, regular mail or directly on our secured section. Whatever method you choose, we will receive the data that was directly entered into the on-board computer at the time of delivery. The only difference between the billing methods is the format.