Eft payment deposit untraceable.

I am a flash mobile customer. On the 26th of October, 2024, I credited the Flash Mobile Nedbank account with R600 via my Absa mobile bank with an eft payment. All the payment details are correct. But since the 26th, I have called Flash mobile everyday to request my flash account be credited, accordingly. I emailed them the proof of payment and even a statement to further prove the payment was successful. They keep stating that my payment is not reflecting on their side and that I should contact Absa to trace it. I called Absa severally and even visited their woodland branch on the 2nd of December 2024. The branch manager there made enquiries in my presence , with their internet department and I was told same thing as before, that my payment was successfully paid to Nedbank from their records. Flash mobile responded to my email to their complaint unit today, the 4rd odf December, 2024. That my funds not reflecting on my side and I should contact Absa.

I have emails and Whatsapp trails of most of my enquiries. My countless calls, in the now futile attempt at resolving this, has been very disheartening and frustrating.

Please assist in investigating this .Thank you.