Upgrading of credit cards without consent

Dear FNB<br> <br> I am an FNB Premier Client. FNB upgraded my credit card without my consent and charged me as such. I have complained on numerous occasions regarding this and the charges have still not been reversed. Furthermore FNB has the audacity to not respond anymore regarding the issue and so I am forced to use this platform to get some service.<br> <br> This service is unacceptable. I unfortunately have to advise people against FNB and to not fall for the marketing ploys as this is not the first time I have experienced service problems.