I've been a Citi customer for many years and now have trouble linking a new credit card account that I share with my wife (that I'm an authorized user of). I've spoken with their support team a couple times now and it takes forever to help me through the issues with still no resolution. Update: After several email correspondences and talking with tech support, I finally got someone to admit that they're experiencing a known linking issue affecting many customers. Prioritize this & fix it.