No help from ovhd regarding issues with decoder.

I have an ovhd decoder. I've been having problems with connection. I've whatsapped their support number for the last 2 months and am not getting a response. I've tried to do it by sending through a message on their helpline and even though they charge for the SMS they keep send a response that it's not valid. I've tried calling the call center and the number is not in use. I am very disappointed in their services and they should stop advertising for ovhd because no one is will to help when we have issues with it.