BAD SERVICE

I have been with mtn for a while with no complaints but recently they have been nothing but bad service! After having upgraded on 01 Mach 2016 and having to wait a whole week for the handset which has been unheard of in all my years with MTN, I was given a micro sim instead of a nano sim which means that my brand new handset is useless by fault of MTN until this is sorted. I am not too sure what is so difficult about pairing a handset with the correct sim card? I then called 808 and Monde advised me to contact activations tomorrow like I have the time to sit on the phone with MTN and correct their mistakes during my own working hours. Monde then said he would send activations an email to contact me as I am extremely irate. Thanks for that Monde but what help is a customer care line when their department has messed up so badly but unfortunately they are closed for the day so its then my problem. I have noticed that with MTN as well, customer care is for when the customer needs you, why do they have office hours? I am so livid about this poor level of service I have received when I have been loyal for so many years! Its disgusting! Is this how they say thank you for all my support?