​Close to 10% credit card processing fee…

I am being charged over 9 percent in average for my credit card transactions. When I started my business several year ago I was paying around 5 percent including all the bogus fees and it slowly creeps up to over 9 percent. I am first time business owner and I thought is just the cost of running a business. My thriving business is running decent volume and my loss is substantial. I run a honest business and try my very best to take care of my clients and employees but I feel the harder I work less profit I take home. I am wondering if there is any way I could recuperate some of my loss from the credit card processing company. Any help or recommendation would be appreciated.