A year ago I had problems meeting my repayment obligations towards FNB, as I had lost my job.
Spoke with the branch manager and we made an arrangement.
Despite this, my account was still handed over to Hammond Pole Attorneys, who started calling me once a day.
I explained their mistake to them via telephone and got an email address to which I was asked to send a written explanation.
The email address was incorrect and the email bounced. It took almost a year before they stopped contacting me, long after the issue was solved with FNB.
They say on their homepage they're serious about service. Serious about crap service yes.

Delivery to the following recipient failed permanently:

ccagent112hammondpole@gmail.com

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Google tried to deliver your message, but it was rejected by the server for the recipient domain gmail.com by gmail-smtp-in.l.google.com. [2a00:1450:400c:c05::1a].

The error that the other server returned was:
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550 5.1.1 https://support.google.com/mail/answer/6596 m139si21021413wmb.72 - gsmtp


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http://www.hammondpole.co.za/home/
ccagent112hammondpole@gmail.com

Keep your financial dealings with FNB as simple as possible.