Vitality shoe booster inactive ( bad service)

I signed up for the shoe booster and purchased my shoes on the 25th of June. I then noticed on the discovery app that my booster didn't show that it was active. I then proceeded to email discovery via their site twice with no response. Then after a week I messaged again with a more stern email. I received a reply in less then 30 minutes. (well done discovery) I then was asked to find my receipt which I couldn't so I took it upon myself to go into Totalsports to fix the isuue. We saw that the person who rang up my purchase missed a digit in my healthy gear number. They then issued me a new receipt. I then forwarded this on to discovery and then after 3 phone calls and additional emails I am still waiting for the app and my money to start to come through for achieving my rewards. I can't believe something so simple would take almost 3 months to rectify. Please get back to me urgently.