Poor customer care

After my first complaint and disappointment that I lodged I saw 2 calls made by Vodacom and I would assume to resolve my concern - I was busy in a meeting and saw these numbers but could not answer them - they were 2 minutes apart - I then get a sms soon after stating my ref number EC-1U2E-26H8UE has been closed. How is it possible that one attempt 2 minutes apart constitute a complaint closed. Further to this I received an email at 10.14am stating that this case has been closed they could not reach me telephonically to which I also rep**** back on the email and no response too date.