Terrible Service from a company I've supported for years!

I ordered a DriBuddi and Mucos Drainol - *** - and both items were available for same day delivery and therefore I paid R60.00 extra - I was desperate for the Mucos Drainol as my doggie is sick. However, only the DriBuddi was delivered, I went back to Takealot to view why I did not received the Mucos Drainol and then it stated its now only available for delivery 22/06. This is unacceptable as this is the reason I paid the extra delivery fee. I then had to source the Mucos Drainol from a different shop and had to pay them for the product Takealot messed up with. I then asked for a CASH refund from Takealot for the R60.00 and the Mucos Drainol, reason for CASH is because I had to go spend money elsewhere because of THEIR mistake. Total value of my order was R1568.00, of which R240 was paid in E-BUCKS and the rest by card. Takealot now refunded me in E-BUCKS and not in cash as I requested. Chezray.R told me its their policy. How is that fair to a customer and for a mistake they made? I wanted the cash back because I had to pay cash elsewhere because of Takealot's mistake! Then Chezray.R says I'm not allowed to get a manager's email address due to the Popi Act????? This is terrible service. I want the Mucos Drainol refunded to me in CASH, they must reverse the E-BUCKS refund, I want the cash, its a case of principal and they can't just decide what to do with my money.