refund of LDW ticket please

I bought Herbalife LDW ticket for the event in July at Johannesburg. I paid 438.60 from my credit card. all along at the herbalife training I was encouraged to buy the ticket. then I proceeded to do just so and the herbalife ordering system accepted my purchase. Now I am told that I will forfeit the money since is did not do 500vp x 3 months. I called herbalife and requested the refund and I was No refunds will be given. this is so frustrating as 438 is a lot of money. Why is the herbalife system not built to reject an order if a person did not do 500vp x3 as required. I made an honest mistake by buying the ticket. and I was assuming I could still attend the event. Can I please be refunded the money or be given herbalife products for that amount. this is really frustrating. im so upset. Secondly, in dec 2017 to feb 2018 I did 200vp x 3 but I did not get the incentive that was on promotion at the time. I asked and no one gave me answers.