They may not be reputable. To start building your credit history, you need to obtain credit from a reputable company or bank that reports to the major credit bureaus. You may need to start small. You are unlikely to be accepted by a major credit card company such as Visa or Mastercard without a previous history. After a few months of paying at least the minimum payment, your credit rating will show a good credit rating.
Some banks also give secured credit cards to people with no credit history.
Another method to build a credit rating is to buy large-purchase goods such as furniture or televisions on a secured financial basis. This means that the store sells you the items on credit, knowing they can take them back if you do not maintain payments. There is a danger, however. Some stores con naive people into buying low-quality products at high prices by breaking the payments up into reasonable monthly costs. Don't neglect the bottom line figure of any purchase it is a mistake to just look at the monthly payment.