You are not acting in my best interest

I have been a loyal customer for many years, never defaulted on any accounts. On 23 May 2015, I app**** for a chargeback. The consultant e-mailed the appropriate document to be completed. During June the amount was credited to my account and I was under the impression the matter was resolved only to get an e-mail from chargebacks that the merchant has once again contested the case stating no refund for online courses. The product was not adequtaley described and therefore I am stuck with on line downloadable materials which cannot be used on my forex brokers platform. The merchat did not explain or give proof that I will not be able to use the material, how can I be expected to pay such a huge amount of money for something that can \NEVER"be used?"