Lack of customer service

I currently have a second service plan with this company. The first service was active and I took my car for a service. The dealership struggled to get payment out of them. I needed my car and paid out of pocket for the service myself, as agreed with one of the agents and they promised to reimburse me. After months of back and forth my policy eventually expired and the agents couldn't pick it up on the system to complete the reimbur*****t. Fast forward I have a renewed service policy and I'm not sure if their debit orders expire after some time, but they stopped debiting me. I made numerous phone calls to their call centre and their agents keep promising that the debits will be deducted the next evening as the company policy states, but the debits never get deducted even though I confirmed my details over and over. My car has been parked for 3 weeks now (considering it's the festive season) while I try to get a resolution to this problem and also to prevent my exentended warranty plan from being nullified. I could pay out of pocket but it doesn't make sense as I have paid my premiums for over a year since my previous service and the required payments for the current service constitutes approximately a third of my annual premiums. With Christmas days away, my family is forced to stay home. All i need is someone that can resolve the issue I have.