Returns poor service

I'm getting rather frustrated with the takealot returns department as I contacted their call centre several times (for over 15 minutes at a time) to explain my dilemma but no one is sorting it. I logged a request to return my netis range extender as its faulty and when I realised I logged a request to replace instead of refund, I called the contact centre to cancel and log a new request. The *********** centre didnt cancel the old request and now I have two requests for the same thing and the courier keeps wanting to collect the device when it has already been collected!!! Sigh!!!