Cellphone insurance

I took a contract with Telkom Business on 08/12/2017 and wants to insure it.I was given number ********** 674 for FinRite Insurance. The number is supposed to be answered from 08am-05pm but i tried calling the number just after 4pm for the past 2days but there is no answer, it just rings.My concern is i need to insure my cellphone within 7days but how am i going to do that if the FinRite Insurance number is not being answered? I need an urgent call so i can insure my cellphone.