Resolve issue with Airtime purchased for the wrong number

Hi, I erroneously added the incorrect number on my ABSA banking app and purchased R100 Vodacom airtime to an incorrect number which according to Vodacom hadnt been assigned to anytime. Both ABSA and Vodacom say there is nothing they can do. I acknowledge that I made an error but feel it is unfair that I lose out whilst ABSA and Vodacom benefit