Nimble ourstanding monies

After numerous attempts to contact nimble about the settlement amount I was asking for there is a.company by the name Yara collections which has sent me settlement ampunts more than the money due.

To my knowledge I am owing cell c 1 612 but their settlement amount is 1 904.04

The otther amount that I owe cell c is 3 322 and this Yara said the settlement will be 3 811.02

Based on the knowledge I have from itc I am owing that Nimble these amounts I have written. The email was not rven written on the company's letterhead.

May Nimble kindly call me to sort this thing out