Terrible service from Liquid Capital

I took my car in for service and was told that I had missed a premium and therefore Liquid capital couldn't pay. I diligently pay (via debit order) so i was in shock. I then had to cancel my appointment. I called Liquid Capital and was told by the consultant (who was not really interested in my call) that I had apparently missed a premium. I then stated that I have proof I paid and sent my bank statements. After a couple of follow ups with TWO different consultants, my email was FINALLY acknowledged but the consultant was extremely uninterested. What was even more disappointing and frustrating was her tone of voice and how she said "eish I have a lot of emails". I found that disgusting, actually. I don't think I need to know that Liquid Capital is short staffed which I assumed after she and the other consultant I emailed did not respond to my previous mails on time. There was no remorse or sympathy for the inconvenience caused to me when speaking to the consultant. . I took out this policy in good faith but I feel the treatment I received was not TCF. To think this was my first service for a three year plan is very worrisome for me.