CFDs are complex financial instruments and carry a high level of risk due to leverage. A significant proportion of retail investors incur losses when trading leveraged products such as CFDs. You should carefully consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your capital.
An A credit rating is given to borrowers that are considered to have a strong ability to meet their financial commitments. However, they might be more affected by changes in circumstances or economic conditions than borrowers with higher ratings.