Team Vitality Cash Back - 4 months later no cash back, just mediocrity from Discovery

I am still waiting on my Team Vitality 50% Cash Back for a race event (Cape Town Marathon 22km Trail) that took place on 22nd SEPTEMBER 2018! I contacted Vitality in October 2018 and was told that those cash backs are paid quarterly and would be paid with the December statement cycle. This never happened. I followed up 2nd January and received a response stating that my details did not appear on the file received from Cape Town Marathon and requesting proof of participation. I sent screen shots and website link to my result. After all the history of this query I then receive a silly e-mail from vitality requesting the date of the event??? Then a few days later I receive an e-mail to say my points have been allocated for the event! That was already done in 2018 and my query had NOTHING to do with POINTS, it was about the CASH BACK. I called again on 21st January and they submitted yet another cash back query. 9 days later I am still waiting for feedback! Since then yet another issue has appeared. I submitted proof of participation for the Bay to Bay 30km event on 21st January (Ref ********** 007). This is usually allocated within 3-4 days and I am still waiting for those points.