FNB Private wealth client treated like dirt!!!!

I have been a client of Fnb for +- 15 years and have reach the level of PRIVATE WEALTH CLIENT. You would think that it will be smooth sailing with regards to customer service and customer relationship seeing that you a client with such a prestigious account. Please be aware on this level the bank requires you to provide salary slips and rental agreements and if these things are not valid the bank will freeze your account without warning as was the case with me this morning at the petrol station such an inconvenience and embarrassing. FNB comes across as a bank that is ruthless and that doesn't care, some would think a Private wealth client gets individuals attention. I would like to know if there are other banks that have the same requirement or am I just individually targeted? To think you pay your monthly subscription for a service and this is what you get a bank that dictates and if you don't comply or take to long according to FNB they Freeze your account. For almost 15 years I was a strong ambassador for this bank that is treating me like dirt!!!!! Very upset and appalled by the service or lack of service I am receiving!!!!