Woolies Bronkhorstspruit

I had a rather unpleasant experience at the Woolworths in Bronkhorstspruit. I made an online purchase a few days ago my order got delivered no problem. Now I needed to exchange a few item. I looked up their online return policy and it specifically stated I need the dispatch note which I have and also the invoice, which I can also show the cashier from my phone. I got to the store with my dispatch note and phone in hand to show the cashier the invoice. She flat out refused to even look and insisted it needs to be printed out, to which she subsequently showed me another policy to this effect. Needless to say I was not assisted and I left the store feeling helpless. My issue now is I'm left wondering why is the online platform saying one thing and the store is saying another. This Is an absolute inconvenience as now I have to return home with these items until I get a printer to print. The whole point of online shopping is the convenience but if we have to struggle like this just to exchange might as well shut down your online platform.