Online Order Bad Service

I ordered my son's clothes online on Tuesday15 December and were delivered on Friday 18 December that was quick and am happy for that. On delivery I noticed that there was 2pk shorts that I ordered and there was only one that was delivered but on my delivery note it says two, same day I tried calling them there was no answer and end up sending an email. I received automatic confirmation email from Woolies that they have received my email. The following day Saturday 19 Dec I called them in the morning and there is a lady that answered my call and she said they will follow up with the shop that was packing my order and she will come back to me latest by Monday 21 Dec and that did not happend. On Wednesday 23 Dec I resend the first email as I had not received the response. Today its Tuesday 29 Dec still no one that has contacted me from Woolies, bad service ever that I have received.