A credit card is a tool for daily spending. For example, to buy food, clothing, equipment, fuel for the car, various tickets paypal cc dumps shop, and other things that can be paid by card.
To earn income, you will need to additionally issue a debit card with the option of accruing interest on the balance or Deposit with the possibility of depositing or partially withdrawing funds without losing interest no cvv stores. The yield of good debit cards is 8-10% per annum. You can earn 10-12, 75% per annum on deposits.