Beware of using Clicks on-line

I purchased goods from Clicks on line store for Christmas presents. All went well, parcels delivered etc. On Christmas Eve at around 15h30 I opened the parcel to find that they had delivered the wrong goods. I phoned the helpline (if thats the word for it). It look the online service person nearly 40 minutes to come back to me by which time it was impossible for me to get to a store to exchange the items. There was no offer of further help and I had to apologise to people I had no Christmas present for. I put up a message on twitter on the 26th, recieved a reply and a promise someone would call me back. Nothing happened and despite further promises from Clicks social media I am still waiting for a call back. It is now 27 days later I have the following concerns 1. The goods I purchased could only be purchased on line. Why was this when there was an obvious transport costs incurred? 2. I had to get into my car and find a store that had the goods I ordered in stock. Clicks told me I could keep the goods delivered in error as if it were some kind of a reward? Why would you do something so insulting? (I returned these goods to the store where i exchanged the goods). 3. Why is it so difficult for Clicks online to call me? I certainly will not use Clicks online again and will only use their stores when convenient to me. I will also allow my scripts to complete and then move them to a pharmacy who wants my business and who is happy to communicate with me.