Wrong Details on the statements

So i have been calling MRP Mobile to ask them to send me the APN setting for the stupid tablet i have purchase by them. They have not been able to help me because the ID number they have on the system does not correspond with my ID number. They have asked me to email them the a copy of my ID together with the delivery note. That has been send and nothing and nobody has gotten back to me. This is the second month having this problem. Someone by the name of Leeann Chellamiah was assisting but now she has disappeared. I cannot continue to pay for something i cant use. MRP mobile do not value their customers and, they are unprofessional because everyone i call tells me they cannot assist me. This is total ******* and I'm tired of it!!!!