Updated on 12/11/25 by Ben_O
Well that’s disappointing to hear @coradia.
Understand that it might seem like a simple fix but sometimes there’s more going on behind-the-scenes than it appears.
Worth bearing in mind that even if there’s good signal in your flat, occasionally if the meters are in a different location (ie, a shared meter cupboard or basement) the signal in the meter areas won’t be good enough for us to receive the readings, in which case we won’t be able to book that in yet. It’s worth keeping an eye on your online account as we’ll make it clear on the homepage if anything changes - the WAN and mesh signal networks are improving all the time so hopefully we’ll be able to offer you a smart meter soon! 
Typically, if an error message occurs when a customer is trying to book a Smart Meter Appointment this is often due to weak or no Wide Area Network (WAN). This isn’t always the case, if you contact Support, they should be able to give you more detail.
Smart meter appointments may also be blocked if you’ve just joined OVO, as your account may not be set up completely. Also, smart meter appointments might be blocked because of previous aborted appointments due to external work needing doing. Our Support Tea, can let you know why an appointment isn’t bookable.