Bad Customer Services for online Clients by Call Centre

I have ordered online on Woolworth website and when they were dispatching my order They find out that they do not have stock for two of my items and the Lady by the name of Tsepiso contacted me on my landline and by that time I was out of the office and she left the message that they do not have stock on two items so when I got back I tried to call back but woollies call centre was busy I hold for almost 30 minutes I then call the head office for them to see if they can help me but they were just using the same line I was using so they did not help me. I keep calling for another 30 minutes until they answered and I talk to Lorena who referred me to Neo and they told me that I need to reorder for me to get another flavor. I ordered Domestos Lavender blast and they did not have a stock on that lavender and I asked Neo if they have stock in other flavors and he says yes but I will need to re-order. I feel as they did not do enough for them to get hold of me because they only call the landline once they did not call my cell phone so I just want to understand if they say I must re-order who will pay the cost of the delivery.