Wrong Order delivered

On the 3rd of December I ordered on the ASAP pick n pay online service and they delivered the wrong items, I logged the issue and they said they will investigate and come collect the wrong Items and reimberse my money but still today I'm stuck with groceries that I never ordered as I did not receive mine. I had to reorder as I needed those Items which is really a huge inconvenience as Pick n pay made the mistake which I feel they should have treated this as urgency as they are in the wrong and not me. I'm not happy at all. From now on I will no longer be using thier service cause my experience with such mistake take long and have you stranded. This is the worst ever . They don't even have a turn around time.