SHEET STREET TERRIBLE CUSTOMER SERVICE

Hi there, I have a Sheet Street Account - I have had this account for a very long time, but probably only made use of it 3 times. Every month they charge me a large amount for all sorts of nonsense such as Lost Card Protection, Service Fee, some sort of Plan (which I did not ask for). My account is paid in full and now I want to close the account. They don't respond to my e-mails, Facebook messages, calls, etc. I have never been this disgusted about Customer Service.