Pick n Pay customer service non-existent

Why does every successful online shopping site spoil in the end? I was so happy with Pick n Pay shopping until they ruined my anniversary gift. I have purchased a Dyson vacuum cleaner for my wife one week before our day. Normally all my orders had arrived in 3 days. This time I had to contact Pick n Pay help and asked what was wrong. Customer service told me it was out of stock. If I have not called them, I would never know.