Incorrect Promotional Match Paid and Support Refuses to Correct Clear Math Error

I am filing a complaint against Acebet.cc regarding a promotional purchase bonus that was incorrectly credited, and subsequent live chat support agents who closed the ticket while misinterpreting their own promotional terms.
On October 29, 2026, I activated a promotional offer via an official email. The promotion advertised a "40% PURCHASE BONUS" explicitly stated to be "worth up to 10 SC." The promotional code assigned to my account for this offer was "Flat40max10".
To maximize this offer, I made a purchase of 25.39 SC. Standard promotional mechanics dictating an "X% match up to Y amount" apply the cap to the bonus payout itself. To receive the maximum 10 SC bonus at a 40% match rate, a purchase of 25 SC is required (40% of 25 = 10). Because my purchase exceeded 25 SC, I should have received the maximum cap of 10 SC.
Instead, I was only credited 4 SC.
I contacted live chat support (agents Vura and WuQaaa). The agents claimed that the promotion means "40% up to a purchase of 10 SC," resulting in a flat 4 SC bonus. This is completely incorrect based on the promotional materials provided:
1. The email explicitly states the promotion is "worth up to 10 SC" (referring to the bonus payout value, not the purchase tier).
2. The code itself is "Flat40max10", explicitly denoting a maximum bonus payload of 10. If the bonus was capped at 4 SC, the code and advertisement would state "max 4" or "worth up to 4 SC".
The agents completely altered the grammatical structure of the advertisement ("worth up to 10 SC" became "a purchase of up to 10 SC") to justify shortchanging my account by 6 SC. When I provided screenshots and pointed out the literal text, the agents stonewalled me, stated "it's not a scam, sorry you feel that way," and closed the window.
I am requesting that Acebet.cc honor the exact terms of their advertisement and credit my account the remaining 6 SC that I am rightfully owed from my purchase.