I don't know what to do to notify of  a payment problem
I've understood, you're unsure about the steps to take in order to notify us of a payment problem. Don't worry, I'm here to guide you through the process. To report a payment problem, you can simply reach out to our customer support team via phone, email, or chat. They will provide you with the necessary assistance and gather all the relevant details to resolve the issue. Rest assured that we are committed to addressing your concerns and finding a solution to your payment problem. Please let me know if you would like more information on how to contact our customer support team, and I'll be happy to assist you further.