Living through a nightmare with FNB Buildings Loan department

I am writing this and will write this on other platforms for anyone who has a desire of getting a building loan from FNB Building Loans, unless if you want to want to commit suicide through the stress you will encounter whilst you are trying to build your home. My credit score is in shambles now and my health has drastically deteriorated since I have started building my house through FNB. Today again they were supposed to pay the contractor and apparently there's a limitation on the system that Simphiwe Dhlamini and his team were not aware of. I escalated to the team leader Keletso, Francois, Ray, Chris and a phone call has been received with yet another explanation that confirms that the Building loan department doesn't know what its doing which means I have to make means to pay the contractor yet again from my pocket because of the incompetence of FNB. This is not the first occurrence, it started with the building schedule being modified without my knowledge not being the original one I submitted which affected the payout of my foundation, then future payments which evaluations weren't consistent with the job completed. All this caused me to constantly fight with the contractor as payments were not honored in time. The beauty of it they distance themselves from contractor agreements telling you are that you are solely responsible to ensure that you dont bridge the agreement which means you have to take additional loans whenever there's a shortfall. My friend went through the same ordeal when he was building years ago however I thought they had improved over the years which I was wrong. Imagine borrowing money whilst you have a retention of over R700 K that can still be used on a house that just needs to paved, and carpentry done but your bank is giving you a run around for the R62k they promised to pay days ago but cant understand the issue on their system. Their slogan must be changed to how can we stress you. I was thinking of switching and making FNB my primary bank after building but I am definitely taking the loan to Standard Bank once I am done I should've never tried going over and trying another bank. I just have to endure the next few month until the house is 100% complete with this horrible bank FNB and hope as well as pray that they will not stress me any further. Please if you want full details before making the commitment I am happy to share with you my contact details.