MTN Data Bundles and Internet Services

MTN data bundle; MTN Subscription code; MTN is currently the world most used data service leaving behind Airtel, Glo and Etisalat but though all this networks are now coming up with their various advertisement and other things.You can remember when MTN is the only network all over the world but now other ones has come out, so in case MTN is mis-behaving you can just change sharp sharp to other