Courier guy. Overnight means 3 days? No contact. Joking.

Paid for overnight on extremely small package. Collected JHB Friday 30th May 1230. In transit that evening. In transit changed to 0130 on 1st June . How? Sent e mail to support x3. They will contact. No answer.It is now Sunday afternoon. What is overnight and how does it translate to 3 days. They were great when they started. Next time use Postnet.