Impossible to cancel MTN Cloud

I registered for MTN Cloud approx 28/08 - Within days of registering I could not upload most of my files and it was very frustrating to use the service - I spoke to a consultant and emailed them on the 2nd of September advising them that the unsubscribe button on the websit does not work. Since then I've also created two queries on their MTN active website advising them that I wish to cancel my MTN cloud service - yet I still get billed for this !!!! <br> Their call centre and website and service are all useless with no responses from either!!!! i think i've reached the end of the road with MTN and will be cancelling all my contracts with them ASAP!!!!