To who, and to what address, should I address a complaint regarding the unprofessional level of service offered by Deutsche Telekom? I have in place an order for a new Glasfaser contract which, according to the information provided by D.T. comes into effect on 10.02.XXX-XXX. No matter how many times I speak with Customer Service via telephone I am unable to convince them that until such time as a Glasfaser Dose has been installed in my apartment it will be impossible to complete the connection. Telekom appear to be under the impression that a Glasfaser Dose is already installed and despite my protestations that this is not the case they remain unconvinced. I have assurances from two representatives, of which I have their names, that they will personally investigate the matter and get back to me. However, I never get to hear from them again which I consider to be totally unacceptable. Of great concern is the fact that Deutsche Telekom, against their own written policy, have terminated my contract with my current internet/telephone provider which should only be executed once the Glasfaser Dose has been installed. As stated earlier, no Glasfaser Dose has been installed by Deutsche Telekom in my apartment despite them believing that there is, and neither has an appointment been made to have a Dose fitted. I feel that I am going around in circles with Customer Services who, regardless of their friendly manner and positive assurances to sort this problem, make absolutely no progress with the deadline of 10.02.XXX-XXX quickly approaching.