Nedbank business account

I am the majority shareholder on the close corporation business. One director is deceased due to covid19 and the wife is restricted to travel because of lockdown restrictions ( She is out of the country). As the majority shareholder and director I am denied access to business account until we can produce an executors letter. This letter can only be app**** by the wife from the master and the wife is restricted & out of the country . It's now two months since we have been stuck. I need someone to assist ASAP because we have subcontractors creating havoc regarding their payments and we are unable to proceed further & service our contract because of this.