Takealot bad faith service

I returned an item; packed everything in the box and Takealot driver collected. Then I waited for the credit against my account. When I enquired about the credit the first email said I did not include the installation guide .I then rep**** and said but the installation guide is a pamphlet (not guide like a booklet) and it was included. After that I received a reply from a different person that told me that all is fine and my credit will reflect against my account. Nothing happened so I wrote back and asked what is going on. A different person (No.3) just contacted me to say the "installation guide" (I thought that was settled) AND cable is missing. What the hell should I do now? Lesson learned "Never let someone pick up an item from your house, rather drive to a warehouse of Takealot and let someone there check the contents of the box that you are taking back, in your presence"