Vitality Drive Activation Issues

There was problem activating my vitality drive, I called and followed up numerous times, it is still not resolved. Call ref: 120759, 15/8/2017, DI said someone will call me back 3-4 working days, no one called me back. Follow up 22/8/2017 not resolved, keep saying there is system error, said someone will call me back 2-3 working days, no one called me back Follow up 28/8/2017 not resolved, keeping saying there is system error, said someone will call me back today, no one called me back. Not happy with the service, it seems no one is paying attention to my issue. Now it is affect my Discovey Life Plan cover booster.