Terrible Customer Service from Vitality Active Rewards

I sent an email to Vitality Active Rewards (Discovery) querying cashback that wasn't received on 14 November 2017 (MailRef# ********** 939#) , with no response. I sent a follow-up email on 16 November 2017 (MailRef# ********** 409#), again no response. We register for these so called rewards and expect to get them and if we don't surely a response is required to a query when it is submitted. It is now 21 November 2017 and I have still not received a response regarding my gym cashback.

It is shocking the lack of customer service nowadays! It makes one question why we register for such rewards if we aren't even going to be getting them. I am thoroughly disgusted with the lack of service from Discovery Vitality Active Rewards