Takealot unresponsive after wrong item delivered.

I ordered an Earth Leakage breaker from Takealot which was delivered on 29/12/23 Upon receiving the item, I opened the box and found a normal 64 Amp breaker and not what was ordered. I immidiately went online and arranged for the return and replacement with the correct item. The collection was done days before it was supposed to be done. The delivery of the correct item is quiet. Attempts to contact by formfield, email and phone proved to be unsuccessful. I cannot complete the job due to their mistake which is now more than a week outstanding