Mtn and Huawei ****med me.

I brought a contract phone from Mtn olny to find out later on that the phone is a xiaomi so am just asking myself how many people have purchase the phone, I am not happy at all and I won't stop until I get to the bottom of this ****, I went to the store they told me they don't know anything I must contact Huawei so it means they olny care about it how much they make.