Joined Vitality on false information and zero Customer service

I have signed up with Vitality Active during August 2022 and signed up with planet fitness during Sept 2022. Before I signed up Bandile Ngcobo confirmed that I will be eligible to get a 50% discount with Planet Fitness. He confirmed this via email. And I continued based on what he said in that email.

Now in December I was debited with an amount of R599 by planet fitness. PF confirmed it is because I don't qualify for any discount.

I have made over 4 calls to Discovery Vitality. Spent over 2 hours with a call centre agent. Bandile was supposed to call me back after 5 min when I spoke with his colleague on the 15th Dec. Bandile's team leader was supposed to call me back on the 19th Dec. Till today I have not had anyone call me back. The only resolution the Vitality call centre offer me is to upgrade my Vitality. I was sold a product with specific benefits according to the sales consultant at a specific price. When I enquire this no one is there to help you to get this resolved.

Can anyone get this issue resolved.