Shocking service from Vodapay

I processed a transaction on the 10th of December on the Vodapay app. It still reflects as payment initialised, with transaction completed and visible on my credit card account. I have chatted via the app and spoke to at least 6 people from Vodacom, including 2 supervisors, who have been unable to help me. There is always a promise to call me back, but nobody actually returns my calls. The ticket logged was closed so each time I message, I have to explain my issue again. There is no contact number, person or email address that can be provided so I cannot even follow up or track my query with anyone. The agents keep blaming the back office team but say I cannot speak to them. I would caution people from using the Vodapay app as the support has been extremely poor.