Your credit rating is an indicator used by financial institutions and banks to assess your ability to repay future loans or credits. In other words, it evaluates how well you manage your funds, which affects the types of offers you are shown (such as lower interest rates). I read here https://askwallet.io/blogs/monese-vs-revolut information that the higher your credit score, the better terms you can expect when looking for financing, which could mean more money saved at the end of the day.
Your credit rating can only be affected by paying off your account and it greatly affects your credit rating. Fees are required to access the Credit Builder on the financial platform.