Found out about a charge I never received a bill f...

Found out about a charge I never received a bill for. I have an account with them but got a different vehicle. Added vehicle. They said charges occurred before adding the vehicle. They claim their system can't link a new vehicle to you. I know for sure this is not true because they linked a second vehicle to my primary account several years ago, same scenario. They have figured out a way to scan and extort people and they're running away with it. They're charging me 5 times what the supposed original charge would have been. These people are like the mob, very powerful crooks and they don't care because they know you are powerless against them. ZERO stars should be created just for them.