A. Before making a purchase, carefully read the description of the ad-free option in the app store. Look for user reviews that mention whether the purchase effectively removes ads or not. If you decide to proceed, keep a record of your purchase receipt in case you need to refer back to it.

B. If you have already made the purchase and it did not work as expected, try uninstalling and reinstalling the app. Sometimes, this can refresh the app's settings and apply the ad-free status.