Poor service to a heavily pregnant customer

I am firstly heavily pregnant, send my router to mtn to repair it took almost 3 months instead of 2 weeks, came back yesterday and still not working, spoke to the supervisor he said it will have to be resend again, am thinking to cancel their contract and take things the legal route, I needed it for December as I am suppose to work from home and heavily pregnant because of their incompetence I will have to get another router from another service provided, am disspappointed.