In the 3 weeks since delivery it seems my EQS has some charging compatibility issues. It will not charge with a Zappi 7kw and with a Hubsta/Elmtronics it charges at 3.6kw not 7.2 and there is nothing I can do. Our EQA is quite happy on both chargers. So far MB have not been at all helpful. Does anyone else have EQS compatibility issues?