For credit card issuers, you can edit the text message XTE + the last 4 digits of the card number + the expected limit and send it to 95508 to apply for a permanent limit increase. You can also send the text message XLT + the last 4 digits of the card number + the expected limit to increase the temporary limit. Or directly call the customer service hotline 95508 and follow the voice prompts to raise the limit. However, you must use the mobile phone number registered with China Guangfa Bank using your credit card.