Let down horribly

I am extremely disappointed in the service I have received from Takealot. Yesterday I was purchasing a Daily Deal off the app on my phone. There were apparently technical difficulties and after I inserted the discount code (which was accepted) as I confirmed the site went down. When I tried to reorder the code was no longer valid. So I emailed and have been conversing with Mishkaah Salie. In essence the initial conclusion was that it must've expired or the minimum spend wasn't enough. I sent a screen shot and proved both of those incorrect. I also asked to check if the code has been redeemed which it hasn't. Now I need to send a screen shot of the error for marketing. I purchased what I wanted yesterday anyway so I don't need to purchase today just so I can send a screen shot. I didn't do a screen shot when it happened. This is utterly pathetic. The onus is on me to prove the code didn't work? Surely you can see on your side that it didn't go through. I have purchased a lot from both Takealot and Kalahari in the past and honestly expected more from the organisation. It's not even about the voucher but the principal behind it. Due to your technical issues the customer suffers.