Ah, I see. That actually makes a lot of sense now. As of this moment all of your services are still administratively active on your old address. With the move tomorrow they will be administratively moved to your new address. From that moment, the right information will be send from our network to your modem. This is why the internet is so very poorly right now, because your subscription is not yet active on your new address.
I'm very confident that tomorrow once the move has taken place within our system, the problems you experience will be fixed. If however you do need an engineer after that, don't hesitate to send me a message here. I'll then gladly book an appointment with the engineer for you!