Have you placed an order with your chosen provider at least 4 weeks before your intended move-in date?
Have you benchmarked the price quoted against similar providers?
If you are using this circuit as a backup, have you considered using a different provider to your primary circuit to offer better redundancy?
Have you checked if your local copper cabinet is FTTC enabled on samknows.com
Have you checked that there is spare copper availability in the office?
Have you checked that there is spare copper distributed to your office floor?
Have you checked the upload speed on your copper connection is suitable?
Have you checked the line for noise?
Have you labelled master sockets and network equipment appropriately?