unacceptable service

My phone was ******. Naturally I called into the call centre to block my phone before it gets misused. An agent named Tho bile tells me I need an IMEI number. I told her I am unable to provide one since I am nowhere near home. What I don't understand is I've been a loyal customer to this service provider and yet they unable to assist with what I deem a simple request. Should any crime be done with my phone or number who then will take the blame? Porting will be my next action as being loyal doesn't hold any merit to this so called GOOD provider. <br> <br> I am very unhappy about this. Goodbye MTN.