Business account missing funds

Second Month now noticing that my business account is debited twice for swiping transactions. The account will be deducted immediately after the transaction but I'll get a notification saying the transactions is reserved. Few days later it will deduct again. Last month I noticed over R400 missing and I called the callcenter and my money was reversed to my account. This months is over R900 missing and I think this is slowly becoming a bad habit. Can I kindly get my money back.