ANSWER
I heard it several times sir because there was another incident which I linked to this one, the one of Mowabi(?) Dibali, there was an incident where I was present where I had participated when he was in Soweto while they were looking for this person's sister by the name of Joyce or Lilian, so I assumed that Joyce was known as being in Botswana because they took her brother Mowabi Dibali.   The fact that we went to Gaberone was not that we were going there to seek out Joyce Dibali's specifically, I had heard her name several times.