I’ve seen this pop up a few times and it hasn’t been addressed at all.
The current financials in the game are broken and the only way to progress is to pay real world money to get anywhere. For example a title fight will say my estimated purse is £1 million but my game money will only go up a few thousand. Then when it comes time to renew his contract I don’t have enough for the signing fee.
If this is intentional I would prefer if you were just transparent and told us so we can stop hoping it will be fixed.