Charged out of the blue - poor service

So I woke up to a negative balance in my account due to Ring Charging a plan i didn't have signed up for...all they could do was reverse it and say sorry...that took over an hour to complete...something I didn't even do. The supervisor insult offers 10 dollar credit asks if thats ok i say no and only offers 20 credit...really need to find another service....this is a formal complaint because i can't find any email to do so. Its not right...check your bills people they do not give you a heads up before charging.