Application stalled due to technical glitch at Capitec

Busy with a credit card application which I started online.

Got a call back saying they needed an October Salary slip (I sent the wrong document initially).

So I sent the October slip. Got another call saying they needed the October slip, with an email. Rep**** to the email, sent it again.

Got another call, requesting the same document. I said okay obviously this is not working where else could I send it? The agent suggested WhatsApp, so I send it via the WhatsApp number. (I got an automated response confirming receipt)

Then got another call, sent it via WhatsApp again.

I've lost count how many times I tried. There is clearly something wrong with the document processing and no agent can suggest an alternative. I tried following up via email, phone and WhatsApp, but I get no further.