Worst telesales ever

I took a contract with this ***** company. the telesales guy informed me that I will pay my first installment in October 2016 and his supervisor said that I must pay activation fee in September 2016; come September 2016 I was double charged by this ******. fast forward to June 2017, I paid but my account was suspended tried to enquirer why they didn't have the answer for me. I stopped paying this terrible company and I will not pay them until they solve the problem they created.