no after sales service

Hi. I have been trying to get in touch with discovery insure for the last 2 weeks to add home content to my policy but every time I call I wait on hold for 10 mins and then the line disconnects. I then sent an email to request for a consultant to call me back but that request was sent 5 days ago and still no contact received. This is highly unacceptable. Discovery should be more eager to get more products sold but it seems that they no interested. And to top that off what happens if a change needed to be made to my policy but do to now response from discovery the change could not be made and I now have to claim. I am certain they would reject my claim yet it is due to their unwillingness to assist that the policy was not updated. Please can someone from discovery contact me