being sent frompillar to post -absolutely NO SERVICE for days

I have been trying to close my FNB Fusion, Revolving loan and credit card for days without any success ,I have been phoning and have been transferred from pillar to post without anybody being able to assist me. Today I went to the branch at Metliefe where I once again had to turn around without being helped. How is it that nobody can assist ??????I need someone to contact me urgently, please