Disappointed with Consulting Associates Corp. installation service

The situation with Consulting Associates Corp. has gotten worse. Now they're claiming I never purchased the training session, despite me providing the receipt and reference number REF-8FF3FDEF multiple times.

Dear customer, On behalf of Consulting Associates Corp., I would like to personally apologize for the inconvenience you've experienced with our technical support package. We strive to provide exceptional service to all our customers, and we regret that we fell short of this standard in your case. After carefully reviewing your complaint, I have authorized an immediate replacement product to address this situation. Additionally, we have documented this case (Reference: REF-8FF3FDEF) to help improve our training and service protocols. Please feel free to contact me directly at extension 4567 if you have any further questions or concerns. Yours sincerely, Jessica Lee Director of Customer Success Consulting Associates Corp.