Discovery credit card and unauthorised debit order

I have been trying to cancel my credit card with Discovery from June and no one can assist. Everytime I call in i am advised someone will call me back. I did not realise that Discovery bank had moved away from FNB from July. Payment was made to the old account. I then received an sms that my account was not paid. I called and was advised Discovery bank moved on there own and I have a new account no. This was never email to until I spoke to the agent on the 3rd of July. I was assured the payment will be allocated and someone will call me back to cancel my credit card. To my surprise I received an sms that I am being debited for a protection plan. I did not authorize this. I then called in and no one could assist. I finally received a settlement letter after 7 weeks and 2 unauthorized debit orders. I disgusted with the service from Discovery and I will be taking this to the ombudsman regarding the unauthourised debits order and lack of communications on the changes that effects there clients.