Medical aid claim not authorized

I received an SMS from Clicks letting me know that my repeat prescription was made up and ready for collection. When I handed in my 6 month prescription I never asked for the medication to be made up and for Clicks to let me know when it is ready every month, but lets move on. A couple of days later I went to Clicks to collect the medication.

We are in the process of switching over to another medical aid so I have to pay cash for my medication this month or else I will have to refund our current medical aid. Come to find out the medication had already been put through my medical aid days before (at the time I received the SMS from Clicks). A medical aid reversal had to be done so that I could pay in cash.

My question is what if I never collected the medication? How many parcels are never collected that Clicks gets paid for?

Who gave Clicks permission to put anything through on my medical aid? I did not request it. Does handing in a 6 month prescription automatically give Clicks the right to put 6 monthly claims through on a clients' medical aid?

Does it not make more sense to wait until someone collects and THEN put the claim through their medical aid?

I am a bit stunned at this to be quite honest.