Takealot refunds are hugely slow!

I recently purchased a speaker through Takealot in March and the product eventually arrived 8th April and was the size of a 200 ml Coke Can. Not what I expected and returned it the next day. Found logging into the app very frustrating to as on my phone it had details from my email address of 10 years ago and really battled. Now I am wanting the R700 refund and they send messages to say incorrect bank credit card. Funny it accepted the credit card when I purchased but now there is an issue. I sent an alternate bank account and as yet still nothing. And there is nobody (human) you can call to discuss. Why? I doubt if I will use Takealot going forward as they are quick to take the money and very slow refunding it. And there is no contact (human) to enquire about the refund!