According to .UK policies, a .uk domain can only be registered by the owner of .co.uk of the same domain at this time.

If you are the owner of .co.uk, please specify your contact information exactly as applied for .co.uk to verify your ownership and deliver the domain ownership information which is given below to Alantron technical support.

The domain owners,
Name:
Email Address:
Address:
City:
Country:
State:
Zip:
Tel: