Capitec blocked my account with no valid reason

My name is Wendy here by to complain about CAPITEC BANK....They blocked my savings Account without notifying me!! I expected money to be sent to my account then the sender told me that the transaction has been made , but it never reflected in my account.I then called the bank and i was told that my account has been blocked. then i went to the branch they also confirmed that my account is blocked reason being there was a R42000 that was transferred from a Nedbank acc to my acc I requested for a statement that proves because i personally never got any notification of 42K .Then statement came after 3day it wasn't complete it only shows when the money came it no withdrawal or spending details i asked the teller for a copy that he's not allowed to give me a copy he can only show me on system.All in all my account is closed for no reason because the bank has no proof hhence I'm told that the money that got into my was spend on a daily bases but the statement doesn't show that. Please i really need help i cannot do anything now because of my account Help me please