IMO not if you have any sense. When they have 'sorted out the problems' that's when the real issues start. All eggs in a single design spec basket, control of your supply without need of entry right from their office desk, data that will be readable and hackable by malicious elements. The company should accept their responsibilities and fit, and read, an external meter on a regular basis. AND stop making pathetic excuses to charge folk different rates depending on which legitimate method they chose to pay, in an effort to force you to do what suits them. Their fixed costs should be accounted for in the unit price beforehand.