Unable to Complete In-Game Purchases on Rocket League with Papara

I’m trying to purchase in-game items on Rocket League, but every time I click the "Make Payment" button, I get an error message: "Sorry, the selected payment method cannot be processed at this time. Please try again later or choose another payment method." I’m using Papara as my payment method. Initially, the game stated that I needed to be over 18, which I was working on resolving with parental permissions. However, I don’t understand why this issue persists even after trying to address it. This is extremely frustrating and preventing me from enjoying the full experience of the game. Rocket League needs to fix this payment system issue immediately so players can use supported methods like Papara without problems!