Money out

I received a notification for money in today from my main acc, i then transfer it to my other account that I use for saving's . In less then 30 minutes I realized the money was gone. No one from Capitec contacted me or anything I waited whole day to hear from them but nothing. until i called them and I was told that they put money on hold as one customer advised that he deposited money to my account by mistake. My question to Capitec as a valued client was i not supposed to be contacted and be advised about what they were going to do in my bank account? If the customer that they telling me about, advised them that he deposited money to my main account by mistake, why then Capitec went to my other account ( saving's acc) and put money on hold from that account, if their customer made a mistake to my main account? How valued are we as Capitec customers in SA? as I'm typing write now Capitec has never bordered to contact me, they did whatever they felt like is good for them to the account I've been thinking it mine for the past 10 years, and today they showed me that, actual it not mine as they can do whatever they like on it anytime they feel like. I have sent 100 email with no response.