FNB sneakily changes info when applying

I wanted to open a Gold Cheque account online and the online portal changed it to a Premiere Cheque account. I want to cancel the Premiere cheque account as it was not what I selected when i app**** for a gold cheque account. Why is it almost instant when applying for an account but I need to jump through hoops to cancel a mistake from your website? Yesterday I called instantly to cancel the account, was put through to 5 different people, none of which could help me. Today I called again and now I'm told the only was to cancel/close an account is to go to a branch? I don't want to go to a branch to fix a mistake made by ****ing fault from the website.