Capitec Bank email systems blocking all communication – unable to access complaints process

I am unable to communicate with Capitec through the channels they require for the complaints process. Over the past two days, I attempted to reply to Complaints Management from two different Gmail accounts, and every message was rejected at Capitec’s security gateway with the error:

“554 Email rejected due to security policies – Mimecast.”

I also attempted to contact ***, and that message was rejected at server level with a 503 5.5.1 error.

This means I cannot submit the requested information, cannot obtain the escalation authority’s details, and cannot participate in the complaints process at all. I attempted to use WhatsApp as a last resort, but the automated assistant does not escalate to a human consultant.

At this point, Capitec has provided no functional communication channel, and I am unable to progress my complaint. Before I escalate this to the National Financial Ombud for denial of access to the complaints process, I require:

The full name of the escalation authority

Their designation

Their direct email address (not a shared inbox)

I am requesting urgent assistance so that I can continue with the process as required.