Poor excuse not to refund

Not happy with service/ response received regarding a product I bought. This is not a product review but more a service review. I bought this item only two find out it's not suitable for my needs as it does not have wheels that I need to get around. I recently became incapacitated from waste down and in a haste I ordered the incorrect product. The product was delivered in a standard takealot box (not manufacturer box, I repeat not manufacturer box). I assembled it and it was never used as I was then hospitalised for a week. Please bare in mind I never used the product. When the item was assembled, the box was discarded. When realising it was the incorrect item I logged a call for a return and now takealot does not want to take the return cause I never sent the item back in thier generic box even though everything was there including tools. I did not ask for a cash refund, I simply wanted a voucher to used to repurchase a suitable product or other products I need, as a use this platform alot to order. Rejecting a return due to it not having a generic takealot box is poor service, I would understand if it was the manufacturer box, but that was not the case. Everything was provided back unused and as initially received. I should have just sent it back in any only generic box I had if I knew this was an issue as I do have some previous boxes from takealot but I was unfortunately not home (due to be being hospitalised). The product costed R1399, and this is not a money I can just part with when I can use it towards other purchases.

People that order from takealot often know that they just use their standard boxes to wrap things and not the product supplier boxes and this should not be used as an excuse not to provide a voucher/refund(where warranted)