No help or support given in trying to escalate this

The Vodacom shop from which I took out the contract where I signed for insurance for the device, has closed down. The dealer and his manager forgot to activate the insurance premium with finrite and they are 'sorry'. The store was franchise owned and there is nothing that Vodacom can do. So frustrated - over 2 weeks later, 100 emails and phone calls and still my mother has no phone (******) and I am no closer to getting this resolved. I just get shunted from one to the next with no one wanting to take responsibility. No smile on my face, VODACOM, even behind the mask. Maybe you want me to give up and go away ? Not happening.