FNB freezes account after lawful deposits - now AWOL

FNB blocked my account whilst in middle of a property transaction. Provided all source documentation as my own bank is suspecting me to be a ********. Now getting no response from FNB whilst my OTP to purchase property is lapsing in 2 days. Disgusted that FNB could do this to loyal and law abiding customers of 20+ years whilst in the middle of the biggest purchase of his life. You should be ashamed of yourself.