They (the guys I know) can open the bank account. The trustee(s) will be the signatory(ies).
As a first step, I need to see the Trust documents, you can send them to me by PM or send me your contact details by PM.
I will need the usual documents for trustees and beneficiaries ( passports / utility bills).
The signatures of trustees who will sign / operate the bank account opening forms must be notarized and apostilled.
The agent firm is a certified and professionals and therefore, there is no need to be afraid of any fraud.