Vitality unhealthy Weight

I signed up for Vitality Healthy Weight on the 4th January. It was a campaign for 6 months at R275 pm. I paid R275 on the 4th Jan, just to be billed R295 on the 4th Feb. I contacted info@vitalityhealthyweight twice, no response. I contacted them yesterday via WhatsApp just to be told that the campaign had ended on 31 Dec 2024 and the price is R295. I explained that I received an email on the 4th Jan and then decided to register and I paid R275. Apparently I clicked on an old link which has since been deactivated. My problem is this, if the campaign had ended on the 31st Dec then why did I manage to register under the old pricing? Should the link not have said ‘page not found’ or given me the updated pricing? Yes it’s only R20pm, but how many people says, ag it’s just R20 I’ll leave it? Out of how much else have Vitality cheated me over the years? Why do I have to explain myself when their systems is clearly not working? Other people should check if they’re also being cheated out of R20 pm.