FNB no busines service

I have multiple accounts with FNB private and business which I own with FNB for the past years. I'm suppose to have a business bank who is never available, never rep**** to my emails , calls or WhatsApps. I've at one stage advised I would be relocating all my account across to a different bank due to a lack of service. What's interesting is that my husband who is a private banking client and recently upgraded his services receives more privileges than myself as a business banker along with the fact that his service advisor actually is on speed dial and replies. I'm shocked by the level of service offered to business clients or maybe it's just to myself . Maybe the slogan how can we help you has no meaning and it's just a for front for the fact that there is no help for business clients . Who ever chooses to take on this complaint if you choose to make a difference in the level of serve offering to myself as a business client then let me know how to go about leaving FNB.