Wrong item delivered

I returned the order for a size exchange, which took way longer that anticipated to be sent back to me, even after numerous attempts to try and expedite the delivery process, going as far as providing an alternative address in Cape Town which would have at least ensured that the parcel gets to me at the desired time. <br> <br> Zando still failed to honour my request and sent the WRONG item to me. I ordered a pair of sandals, but a ventilation system was sent to me instead. now I've been trying for the past 2 days to get hold of them so that they rectify this, eventually got in touch with their call centre, the agent I spoke to says I must sent an email (which they've failed to respond to) and attach a photo of this WRONG item I received, only then they will send a courier to collect from me and send it back to their warehouse. At this stage we're looking at 3 to 4 weeks awaiting my order!