Is Tracker ******** its customers with an SMS advised "additional fee" this month?

Received an SMS from you ("Tracker Subscription") on Friday27th advising that an "additional fee of R1.52 will be deducted from your account 975069 along with your next Tracker Subscription". Why? Surely, the very least that you should have done was to provide the reason? I guess that the message was not just sent to me but to all of your customer base? Surely, you owe it to your customers to be transparent? Some of them might equate your action to the "99 cent debit order ****". Without a reason for the additional charge, I do!