DOES ANYONE KNOW HOW TO DO THEIR WORK HERE ???

how difficult is it to activate a simcard that has already been sanctioned on a new contract ??? I have been pushed from pillar to post - and still no success !!! my contract was done with MTN corporate - ***. I called them to activate my simcard - they cannot help. I was passed onto 808. they also cannot assist. back to ***, who now passes me onto ***. they cannot assist so back to ***, who now passes me onto 809, who also cannot assist !!!! what in the world???? can anyone help ??????