This MR33 was in use in UAE. No you took it with you, or has been sent, to UK?
When you are logged in to the dashboard, you see the MR33 (you have access to the network where it is in)?
Then you just need to reconfigure it...
https://documentation.meraki.com/MR/WiFi_Basics_and_Best_Practices/Enabling%2C_Disabling%2C_and_Chan...
Assuming, you are a private person:
If you can login to the dashboard, but do not see the device, then you need to have access to the old network and then move it to your own. Or delete the old administrators.
Some more information would be helpfull,so we can help you. 🙂