LSI to stop deducting my money.

LSI has been deducting money from my account. I contacted them to find out what the money was for and I was told that it's for admin, for an account with them. I do not have an account with them, as I have not invested with them. I asked them to cancel several times, but they still continue to deduct my money. They have ignored all my emails. I just want them to stop deducting my money, but they just won't. I sent another email today, but I still received no response. This is absolutely ridiculous and unacceptable.