I signed up for the Oracle Cloud free tier, after entering all my details and verifying my credit card, it prompted a box saying that they will send me an email after my account is created which can take up to 15 minutes. But like 5 hours have passed but I still haven't received my email. I tried contacting a live agent a few times but there's no one available to assist me and it suggested I ask for help here. Am I supposed to wait longer or is there anything that I have done wrong?