One day only , please give back my money.

Hi. On the 6th of Nov I made a purchase. I pay as usual via eft, I was a bit late as I was struggling with my banking app. I struggled to edit the old order no. To the new one. OneDayOnly gives you 2hrs to do the eft. To date I have not received my refund. I have numerous emails going back and forth, attached the POP, explained why they might not find the payment easily due to the order number error. But for some reason, no one understands. If the finance department will make the effort to go ont their Standard Bank statements, look on the 6th or even 7th or eve the 8th of November they will find a payment of R1632 with a ref no ***. This ref is an old order number which I could not edit on my banking app. This payment was for order no ***. If they do a recon, they will note they are over by R1632. This is my refund. There were promises of my funds being pd to me, apologies for the not understanding, apologies for the delay, comments made to me that this is not difficult and thay they don't understand why it's taking this long since the 6th. And today the 6th of December they tell me they cnt find my payment. Really....one calls, not reads the email trails, no one asks for help from their superior...or maybe they did who know. If I don't follow up, I don't get any communication. I will officially delete my OneDayOnly only app. Can I have my refund please