FICA - Again?

My non-profit business account has been open with Nedbank for several years. Due to personal circumstances (family illness) I am based in the UK. This is causing serious issues (and considerable stress). Initially, I requested a change to my OTP cell number, but was told I had to attend a branch! As stated I am in the UK. Despite multiple appeals, nothing was changed, but we managed to struggle through. I finally managed to get time to visit SA and went into Nedbank to sign indemnity forms that should allow me to conduct business from the UK and submit documents / request changes.

Things have since taken a downturn and gotten worse, now Nedbank have frozen my account (without warning - just an SMS). When I attended my branch I was not advised of any requirements, I simple signed the indemnity forms. PLEASE can someone contact us urgently to assist in this matter as we have staff to pay!!