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.
Your available credit is averaged over your billing cycle, which is sometimes less than 30 days. If your limit is say, $5,000 and you charge $5,000, even if you pay it off each month, your credit balance is still going to show $2,500 (a 50 percent usage limit), which is going to make your score plunge.