Disappointing Customer Service from Pick n Pay Clothing online

On the 19 December 2021 I ordered two (2) dresses at Pick n Pay clothing online. I received my parcel on the 23 December 2021. When i opened the parcel later in the day there was only one (1) dress inside. I immediately sent an email to enquire as I had not received any communication that i would be receiving 1 dress instead of 2. Few days later an Adrian responded to my email to tell me that they do not have stock on the 2nd dress and that they will refund me. Up until today they have not refunded me - one month after I reported the issue. I have been sending emails weekly and promises made, but still no refund. I am very unhappy with the service that i received, I feel that they do not value their customers at all. Pick n Pay clothing online confirmed while I was making my order that they dress is available. But when they found out that there is no stock, they never bothered to contact me and inform me. They sent emails and sms that my order is on the way to me, but never bothered to tell me that it is only one dress that they are sending. This to me is poor customer service at the highest note. To top it all, I now have to be the one following up on the refund.