I placed an order with Pick n pay last week

I placed an order with Pick n pay last week. I order 4 x Colgates, I received 2 I reported the incident immediately till date no one has contacted me no one has refunded me. I feel that because they know this is a service we have to use they don't bother to reimburse there clients or even have the decency to get back to us. This is my money of I owed them they would take there money from my account