Reinstatement of MTN service

Today I lost my MTN service for outgoing calls. Apparently my current contract has been cancelled. The background is a call from MTN agents offering an 'upgrade' which I declined. I asked for documentation on paper to study the offer. It seems as if the 'upgrade' went ahead and my current contract was cancelled. Somebody somewhere sometime would bring me a new SIM card. in the meantime I was without a service. Eventually I got in touch with Noxolo Mngadi of Mondo Mobile who came quickly to the rescue and had my service reinstated. I appreciate her efficiency and willingness to help.