DPD Laser loses parcels

Returns for three Cape Union Mart purchases were scheduled on 16/05/2023 and collected by DPD Laser (Heidelberg WC branch) on 17/05/2023. By 27/05/2023 I have not received any feedback or my refunds so I've sent an email to Cape Union Mart whom hasn't responded yet. A follow up email was sent on 02/06/2023 but still no feedback. I have also contacted the courier on 02/06/2023 and it was found that the three parcels were misplaced. The lady said that she will sort it out and get back to me. I have followed up on 03/06/2023 as well as 05/06/2023 since they still could not give me an answer as to where the parcels are. Other people at the branch are blamed but it is not my problem. All I want is that the parcels are found and returned to Cape Union Mart for me to be refunded or they must pay for the monetary loss that I have suffered.