highway *******

I have had a motorxtender policy for several years now. The premiums have increase steadily and steeply over the years. I don't mind as long as I get a good service in return. What really gets my goat is that I have used this service once before to have my vehicle towed from home to autoview Volvo in Bedfordview. I did not pay a cent towards the towing. The engine light is engaged in my car so to prevent a potential breakdown in the middle of nowhere, with my toddler, I requested a tow to the dealership. I was infuriated to hear that they only tow up to 20km and that the customer fits the remainder of the bill. What gives? I read the policy document and the 20km rule isn't stated anywhere. Why mention this now? I am livid