Cancelled chronic order with no notification

I ordered 14 items of my repeat chronic medication, from Medxpress via the Discovery app on Fri 11 Dec 2015. I ordered from Medxpress last month for the first time, so I used the widely advertised app to reorder, and I paid the levy amount as prompted. A few days later someone from the pharmacy called saying the Inza Ibuprofen was out of stock and could they send Nurofen which has a higher copayment, and I agreed. It is now Fri 18 Dec, 7 days' since I ordered the meds and there has been no delivery. I phoned to see why it has not been delivered yet because the work address I provided is closing for the holidays TODAY, and I'm going on vacation out of the country on MONDAY. Medxpress told me the entire order was cancelled on the system! The pharmacy cancelled it because one item was out of stock (and that item was the Inza which they phoned me about?) and \it was protocol to cancel if one item is out of stock". I've had no sms"