Had a replacement home charge unit fitted two weeks ago Due to issues with the old one reporting that it was constantly plugged in. My account has yet to be updated with the new units serial number and reset in the hope that the problem is resolved. I have made a number of calls and been passed between customer services and the home serve team neither of whom will accept the responsibility of updating the system. Absolutely terrible customer service and a waste of time having a Smartcharge system if it does not do its job. I will be deleting this app and would not recommend bp charge master to anyone.