no rsponse after a week

i complained about how fnb took their time to open my business account. a week later nothing has been done and business banking is supposed to send me the bank mandates. how difficult is it for fnb to just send the mandates so that i can sign and send back to them? i have made numerous calls and they only thing they say is that they will send an email but nothing gets sent??? do i need to call jacques celliers now or send him a message via linkedin??