Heres an overview of Openreachs contact details: The time it takes to file a complaint against a business might increase if the channels of contact are not constantly available or the firm takes too long to answer. Openreach installs and maintains the UK copper and fibre network to allow your supplier to provide you with service. If you complaint is still ongoing you should Read this :- Ofcom How to complain and if youve done everything there contact them Office of the Telecommunications Ombudsman Contact Us, Otelos contact details are as follows: