No, football money is legal. It seems like you just recently started getting into sports betting. The European Championship is currently underway, and there are very few games in all other leagues. Conditions change frequently and cancellations occur. It is not always possible to use the exact football match that was breaded.
If you bought a match, you will definitely receive it, there is just a chance that there will be a replacement and you will receive another fixed match. It's in your best interest; The seller does not provide those matches in which changes in agreements occur.
This is a common situation, please be patient. Football money is always reliable, you made the right choice.