Finally got through to a chat agent and they told me that this is "a known issue" with AT&T's Premiere website. They told me to call. Fun.
Adrian P.: Were you able to add your current data plan from your cart?
Bill K: no
Adrian P.: Your current data plan is DataPro 2GB.
Bill K: it only gave me 3GB or 200MB as options
Adrian P.: Okay, let me replicate your account to view these information's.
Adrian P.: I am currently working to research your concern. Please hold and I will be right back with you within 2 to 3 minutes.
Adrian P.: Thank you for patiently waiting. As I've checked on my resources and I have replicated your online account. Im showing the same error. It is a known website issue, for you to proceed on your process. I'll provide you the number to call, please call our Premier Support Center at 1-866-499-8008, Monday through Friday from 8:00 AM to 10:00 PM EST. This is a known issue and Premier Support Center will be happy to assist you in completing your order. We will file a trouble ticket and do what we can to help you place order. I am sorry I was not unable to solve your problem today. But our Premier Support Center are aware of this issue and working feverishly to fix it.
Bill K: no problem, thanks!
Bill K: have a good day.
Adrian P.: Were you able to add your current data plan from your cart?
Bill K: no
Adrian P.: Your current data plan is DataPro 2GB.
Bill K: it only gave me 3GB or 200MB as options
Adrian P.: Okay, let me replicate your account to view these information's.
Adrian P.: I am currently working to research your concern. Please hold and I will be right back with you within 2 to 3 minutes.
Adrian P.: Thank you for patiently waiting. As I've checked on my resources and I have replicated your online account. Im showing the same error. It is a known website issue, for you to proceed on your process. I'll provide you the number to call, please call our Premier Support Center at 1-866-499-8008, Monday through Friday from 8:00 AM to 10:00 PM EST. This is a known issue and Premier Support Center will be happy to assist you in completing your order. We will file a trouble ticket and do what we can to help you place order. I am sorry I was not unable to solve your problem today. But our Premier Support Center are aware of this issue and working feverishly to fix it.
Bill K: no problem, thanks!
Bill K: have a good day.