Baddest service ever

After numerous attempts to get my R100 reversed back to my bank account since I didn't get the airtime when I bought via by bank. My issue is still not resolved. All Vodacom does is give me email after email to send proof of purchase. I already have 4 emails that I sent my proof of purchase to, however the references they give me get closed before my issue is resolved and whenever they promise to callback they never do. I bought airtime R100 on 24 December 2020 and didn't get the airtime, and it's now March 2021, there is no resolve still.