CellC Below Par customer Care

I intended to buy data with my airtime on the cellc network using the USSD code *147# So I took a special offer and somehow selected the wrong number and bought TikTok data instead of usual data. I called Cellc to ask them if they could refund the TikTok bundle and I don't make use of the app at all. And return my airtime. I'm not looking for a refund, I just wanted the airtime so that I could convert it to Data. They advised that can't do that although I explained what happened and also that I don't have orr use TikTok and yet still refused. I explained I just needed data if there's anything they can do and declined as they said its not possible. I mean if I go to a store and I buy the wrong thing which is physical, we can touch and see and I return, I'll get my money back or I can swap it. Why does cellc not give me this option. That just doesn't seem right, I've got a bundle for an app I don't use. They'll make make their profit and I won't use the data. That just not right. Customer Don't Care Line. What do they care, they've already got their money