If you have a complaint about your telephone company, please contact them first. If the problem cannot be resolved, you can contact OFTEL direct on 0845 714 5000 or via typetalk.

DIEL is not able to provide advice or help with telecoms complaints.  Please click here for advice on how to make a complaint to OFTEL.

DIEL Secretariat
50 Ludgate Hill
London
EC4M 7JJ

Tel:  020 7634 8773
Fax: 020 7634 8924
Text: 0845 600 1318 (local rate number)
E-mail: diel@acts.org.uk