Unknown debit orders

This is actually my first review of anything, really. I am very upset at the trend I am noticing on my FNB account. For the past few months there have been countless unapproved debit orders going off my account. A few just under R100 and a few over. I want to know how someone keeps getting access to process these debit orders that have nothing to do with me. This month there were two; one for R99 *** and the other R95 Ref. Easydebit Blaq146860. What are these things?????????????????? Yes I know I can reverse and block debit orders on my cellphone banking but before we even get there, why is it getting easier and easier for this to happen? I have numerous accounts with other banks and this is not happening on those accounts. I cannot be constantly blocking and stopping random debit orders on a monthly basis. I am even looking at closing my FNB account.

Extremely disappointed,