Connack Muller & FNB - Scam?

I need URGENT assistance from Connack Muller but there is absolutely no way to contact them and get a response in this matter.

I need them to verify that they are officially appointed to represent FNB for legal collections.

My son has received an email from Connack Muller but they have no website, the letter is unprofessionally written and I suspect a scam.

Is there anyone who can assist with this enquiry.

Judith

PLEASE NOTE: I cannot include my mobile number as I am out of the country at the moment and the space provided does not allow for the longer mobile number.