BAD SERVICE FROM MAKRO

I made a online purchase with Makro on the 04th of December and I still have not received my order. This was supposed to be a Xmas gift for my Wife. So unfortunately she didn't get her present due to the bad service from Makro. They send an email on the 29th of December saying the order was delivered. But I don't know to who as I did not receive any delivery from them. Worse part is they charged me for this and now I pay interest on some thing I did not receive. The second issue is I bought a similar item on the 2nd of December, but it was too small. Hence I ordered a bigger Item on the 4th. And was told that the courier will collect the other item and return it to them when they deliver my order. Now I am been told that is not the case as the other item I bought directly from the store. And it doesn't have an order number and the 14 day window period is now closed. Which means I can't return it anymore. So I have an item that I don't know what to do with it. I don't know why the 14 day return rule is for as this item is not perishable. It is still in the box it came with. And I would have returned it to the shop if I was told this when I 1st enquired. Hope they will come to their senses and rectify this.