Night Express Bundles

I have been sending emails and calling MTN to opt out of these night express bundles. I can't seem to get any joy because apparently, I can't opt out. I don't need them, did not ask for this \freebie"and I certainly dont want it. All it does is confuse me. When will this night express promotion end? it is the biggest inconvenience and I didn't sign up for such. If I wasn't on a contract"