POOR AND INDIFFERENT SERVICE FROM MATRIX

I called this morning just after 09h30 to organise for a Matric unit to be fitted to be new vehicle. I have an existing account with two vehicles already on it. I stressed the urgency as the vehicle is being delivered tomorrow midday. At 10h40 I called Matrix again to enquire as to when this individual will be calling me so that I can get the transaction underway. The person I spoke to first told me that there is no evidence of my first call and then afterwards told me that as it is a company account the company was being credit checked first. (Interestingly the monthly payments for the other vehicles go off without any issue) I again explained the urgency and was told that someone would assist me telephonically and I was placed on hold. I have been on hold for 15 minutes now and have to listen to the marketing recording and no-one is assisting me. What options do I have? Do I keep holding and paying for the call or do I call in again and go through the entire process all over again?