No response to emails and resolving a request

I have since May 2017 been trying to solve a problem with my tracker installation. Equipment installed from new was removed with my latest installation. I have mailed Momo on the 29th May. I have mailed and spoken to Ndiwa on the 5th of September. I have posted on Hello Peter and received a call from Denise Comeroden on the 8th of September who was attending to my problem. My last mail to Denise on the 3rd of October has been unanswered. Try another tracking company.