wrong numbers on the insurance documents

i had an insurance plan with the company, i registered two numbers with them and i had to use those two numbers with the phone*** and ***) my device got lost and when i wanted to claim i was told my i was using a different number at the time which is not true. i asked for them to send the number they say i was using and i dont recognize the number ***) i would like to know where they got the numbers from since i never gave them that number, i even tried to call the number and it keeps going on voice mail. i asked for the copy of the contract and they sent me a copy with those same numbers, which i dont recognize, i went to MTN BLOED MALL where i opened the insurance from looking for the original documents but i could not be assisted. i I WANT TO KNOW WHERE THIS CELL C NUMBER IS COMING FROM AND IF SOMEONE ENTERED THE WRONG INFORMATION I SHOULD BE COMPENSATED BECAUSE MY CLAIM HAS BEEN DECLINED AFTER PAYING THEM EVERY MONTH