Really BAD service from MTN stores

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I am trying to cancel my MTN LTE (Home) pay as you go. First I went to the MTN store in Strand where I was told it can only be done telephonically. I called MTN to assist me with the cancelation and was then told I first need to return the router to the MTN store. So I went back to the Strand branch, this time they told me I had to take the router to the MTN store in Somerset Mall. So I drive all the way to Somerset West only to be told that I had to take the router to the branch in Tygervalley. I refuse to drive all the way to Cape Town just to return the router. I app**** for the service online and the router was delivered to me. Why am I now getting the run around when I'm trying to return the router ? This kind of service is totally unacceptable.