Takealot need to wake up

I have exchange my sons watch on the 9th or 10th of January they told me via sms the watch was collected and gave me a reference nr...the next day my daughter exchange her watch aswell from a different pick up and delivery point she received a sms it was pick up and the reference nr (a few minutes) after pick up of her watch I was credited on my takealot account for her watch which they did not even receive in the warehouse yet. This credit was supposed to be for my sons watch not hers, there was a huge mix up at takealot. I need my sons watch money to be credited, as you did receive his watch first. I did phone and email them they said they will escalate to the relevant department but there is nothing happening...the problem is her watch was now credited, and now my sons wat h is not going to be credited because of a stupid mistake made by Takealot. This needs to be sorted, I am getting very frustrated