ABSA Unilateral Powers and Rudeness

For the second time in a span of one year ABSA locked my internet and mobile app account without informing me why or give any reason. Then they claim that I must have entered my pin wrong three times which is abo****ely not true. I am not senile and know 20 different passwords for all my different services and accounts and never had an issue of entering wrong passwords for any of them ever. Let alone entering the password wrong three times in a row. The person at ABSA's head office branch was so agitated and rude and definitely not in the mood to assist. No wonder that ABSA is 5th (second last) on the list of the top banks in South-Africa according to customer reviews. Being a customer for more than 40 years at ABSA one would expect at least a proper reason for the blocking of the internet and mobile app accounts and not throw it into the face of the customer. Also, a more friendly person with better customer relational skills was expected to assist but instead I received service from a bombastic and rude individual - his name is known if ABSA is interested, and if ABSA cares to rectify such behaviour from their staff.