Frustrated customer

I am so disappointed with the level of service at FNB, for weeks now I have been trying to get my queries resolved. Used the FNB Secure Chat facility and also through @RbJacobs on Twitter, my last resort was the contact Centre however I still can't receive the assistance I need.

My name is misspelled on the notification of payment and yet the consultants insist my details are correct (I do not dispute this) but on that specific document it's missing a letter and that is such a huge discrepancy! I also don't want to see those offer but I've been advised that I can't block them or revoke consent. My Compuscan report is filled with enquiries done by FNB. I've exhausted all avenues and I really need this resolved.