Bad service from customer care and installer

On the 29th May 2017 I sent Momo a mail complaining about an installation of a previous tracking device which was not removed. I had no response. On the 1st of September 2017 I called the call centre and spoke to Ndiwa who assured me she would come back to me. She is yet to come back to me. On the 5th of September 2017 I mailed the customer care and again I have not received a response. As far as I am concerned I do not recommend this company to anyone.