Inefficiency with my Order

I ordered some essential items online on the 02nd of May and when I received my order it was incomplete (items were delivered on the 21st of May ) I immediately called the Mr Price call centre and i was told that they would search for the item at the warehouse I waited a week and nobody called me to let me know what is going on , I called again and the consultant asked me if this is the first time I'm calling about this which to me showed that nothing was done when i first called it , this consultant then said they would send someone to come collect the item and i would get an email about the collection its and then receive my refund its the 4th of June already and i have not received , I am ANNOYED coz of how inefficient they are and nobody has responded to my emails too.