dishonest,poor services, charged me $200 more than it supposed to be without my authorization, bad

The rudest and dishonest people that I ever deal with, taking advantage of people and charge them without their authorization, under a very busy, hot and long line of waiting to get to the counter they ask you to sign a paper that is totally opposite of the verbal agreement, i specifically told them that I do not need any of their extra protection or liability insurance, yet they charged me extra and accused me that I signed the paper agreement without noticing of those charges. I am trying every day to call them and talk about my issue but the line is always busy and no matter how long you are waiting you could never reach to customer service.