Ask for higher credit limit:
Because credit utilisation ratio can have an instant impact on your credit score, it is important to ask for a higher credit limit.
Pay your Bills on Time:
To improve your credit score, it is mandatory to take care of your utility bills that are pending on your credit cards. Make sure you do not delay the payments as clear debts improve the score.
Ask to become an official user:
If a relative has a good credit history, you can request their allowance to become an official user. It will imply that the specific account has a great credit evaluation. This can be added to your credit score.