MTN blacklisted my new device without my consent

I upgraded my two contracts with MTN on the 1st of February 2016 with a promotion of getting two cellphones per upgrade. What a good offer.Unfortunately one of the phones was ****** on the 23rd Feb. I called MTN to blacklist the ****** phone and voom, there start my nightmare. It was confirmed that the ****** phone has been blacklisted.Same day all of a sudden even the phone i am using started not working. I called MTN and they said its blacklisted. How come? I don't know because I told them to blacklist the ****** device only.<br> <br> I spent every moment of three days calling them to unblacklist the phone because I have to use it and I was told it will be unblacklisted in three days. Its been 1 week now and I still can't use the phone. Today they told me to send them the ITC reference number of the blacklisting.Its amazing because if I did not authenticate a blacklist it automatically means I did not receive an ITC reference. they are the once who blacklisted my phone instead of blacklisting a ****** phone only. How do I go about this because I only received the ITC reference number for the ****** device. For how long will I pay for a non working phone?<br> <br> MTN correct your mistake please.