You will need to be the account owner to rename your network, meaning you are the person who created the network.
To rename your network go into the network, select the settings icon at the top right of the screen. Then, select network details and at the bottom of the screen there is the option to rename or delete network. Select rename then enter the new network name and select 'Ok'. The network name will now update.
Please do not hesitate to get in touch with Smarter Support by emailing us at email@example.com. You can also give us a call us on 0800 802 1237 if you are in the UK or EU or on +1 (855) 489 5522 if you are in the US.