Poor Service Delivery

I bought a LAN cable from Takealot in the 14th December, delivery was expected Monday. The Item got delivered and as soon as I opened it, this was the wrong product delivered. I logged a return yesterday in the 17th and now they want to collect on the 19th??? How am I being the one inconvenienced by takealot’s mistake? Further more I pay a subscription of R99 for takealotmore but there is no urge in them delivering a service that I’m paying for. I need my cable today, if takealot didn’t make this mistake and inconvenience me further I would not be here. I’ve sent them emails and they are still saying they can only collect it tomorrow, why????? We know they have same day delivery services so why do I have to wait so long and suffer in the interim for a mistake that was made by them? How is this treating the customer fairly? This is unacceptable and disgusting behaviour