Don't Order Online for Delivery at a Clicks Store

I placed an order on the Clicks website, to be delivered to my local Clicks. Pargo confirmed the package was dispatched a day later. Two weeks later, I decided to visit the store, where my package had been lying for days, but where the staff wouldn't release my package without a 6-digit code. Pargo told me they couldn't help, and that I should call Clicks, Clicks staff told me it wasn't their problem, it was Pargo's problem, Pargo then told me it was the problem of UPD - Click's inhouse courier company... Ultimately, nobody was able to help me get my package and what's worse is, the tracking number still indicates the parcel is 'in transit', despite the fact that I've seen it at the store.