A few days ago, I wanted to buy some R-Cells for the daily mission. Because reinstalled the app, I forgot to active the purchase warning. But during Monsterlab-Week, the R-Monster is not on the first place and there were „120 L-Cells for 325 gems“ offers instead. And now you can probably guess what happened... I bought 120 Wolfgang-Cells for 325 gems. Because that probably happened before, is there a chance that I can get these gems back and the Wolfgang-Cells are getting removed from my account ? 325 gems are a lot and are not worth to buy Wolfgang-Cells for them !

Try contacting in-game support. They will most probably refund your purchase. It would be wise to turn on purchase confirmation in the settings to avoid such mistakes in the future