Poor service

I am extremely disappointed with the level of service received from Matrix. On 5th June, I called twice and requested to be transferred to the cancellations department, but both calls were disconnected prematurely. I subsequently sent emails to *** and ***, but I have not received any response. I followed up again on 8th June, and to date, I have not received any reply. I own three vehicles and needed to cancel one following its sale. This inadequate level of service concerns me regarding the support I might receive in the event of a vehicle hijacking or theft.