Body: I hit this exact situation last month on a apps promo, and the thread title says it better than I could. You opt in, start clearing playthrough, and then the goalposts move. Here is what actually worked for me, what wasted my time, and what I now do before I ever spin a single round on a bonus. The moment a promotion starts, I stop trusting the marketing banner. Instead, I open the full terms page, scroll past the welcome copy, and save the whole thing. I take a full-page screenshot, not just the visible part, and I also copy the text into a plain note. The note gets the community-hub name, the promo code if there is one, the date and time I opted in, and the exact activity-rules number, game weighting, max pick, and expiry. That sounds tedious, but it takes about two minutes and it has saved me from arguing with a blank chat window more than once. Then I check one thing that most players skip: whether the terms page has a version date or a “last updated” line. If it does, I write that down too. When a community-hub silently edits a live page, that version line is often the only proof that something changed after you joined. Without it, support can just say the page always said 40x. With it, you have a much stronger case. During active playthrough, I re-open the promo page once a day. I am not looking for drama. I am checking three specific numbers: activity-rules requirement, max pick while bonus is active, and excluded games. Those are the three things that tend to shift mid-promo. A fourth one, less common but worth watching, is the maximum cashout on winnings from the bonus. If any of those numbers look different from my saved note, I stop playing immediately. Do not keep spinning while you decide what to do, because every spin under the new terms weakens your position. When I contact support, I keep the message short and factual. I say the promo code, the date I opted in, and the specific term that changed. Then I attach the screenshot or quote the saved text. My exact wording is usually something like: “I opted into this promotion on March 3. The terms at that time stated a 30x activity-rules requirement and a max pick of 5. The page now shows 40x and a max pick of 2. I did not receive a notice of this change. Please honor the original terms or remove the bonus and restore my original balance.” That last part matters. Asking to opt out and have the bonus removed is often easier for a support agent to approve than asking them to override a changed requirement. Some community-hubs will say their terms allow changes at any time. That is technically true on many sites, but a clause that allows changes is not a free pass to change the deal silently after you have already started. If they refuse to honor the original terms and also refuse to let you out cleanly, I treat that as a withdrawal and account-review moment. I do not deposit again just to finish a bonus that is now worse than the one I accepted. The practical habit that fixed this for me was not anger or speed. It was having the original terms saved before the promo could change. Even on sites I trust, I now do this for every bonus with a activity-rules requirement. The ones that stay consistent never notice. The ones that shift get caught early, and I can walk away without losing a day of play to a worse deal.