He is a mean and greedy man who often does business with the Romans. Appears in Asterix and the Cauldron when he tries to trick the Gauls into paying his taxes for him, though by the end he has lost the money he regained.
This is normal. Your credit score could change daily depending on how often your credit report is updated. Your creditors and lenders are continuously making updates to your credit report throughout the month. Each time you check your credit score, it's recalculated based on the information in your credit report.
Paying off maxed out credit cards will help your score. You should see the improvement as soon as the cards update to the credit bureaus. They only update once a month so it might take 45 days before it shows. But this is only true if the account is still open and active, not if it's in collections.