My domain name on whois.net says available!

[baldrick69]

I just checked my domainname.co.uk, registered with BT years ago, on whois.net and it says "available".  Should I be concerned about this?

[markp]

Hi baldrick69,

it sounds as though your domain name either needs renewed or purchased again if it is showing as available.  I would advise you to contact the helpdesk here.

Mark