Have AT&T's Mobile Shared data plan and want to upgrade your device?

I switched to AT&T's Mobile Share data plan last fall.  Today I went to AT&T wireless website to upgrade my phone.   I currently have a HTC Desire HD Android phone and selected the Samsung S III (pebble blue).  As I worked through each step of the process I got to the data plan section. I had my existing Mobile Share data plan, but the website would not let me continue without selecting an individual (non shared) data plan.  

I called AT&T support and talked to a website support person.  She said that I had to select a different data plan to complete the purchase.  She also insisted that this would not change my existing data plan.  The web pages that displayed told a different story.  After selecting the data plan I go a page that told me that my existing Mobile Share data plan was being removed from my device number.  At the summary, of charges, in addition to the cost of the phone ($99) I would now incur a monthly data charge.

Customer service could not explain sufficiently to convince me that I would continue to have the Mobile Shared plan instead of the new plan I selected. I specifically asked is she would adjust the order or if there would be an adjustment or I I had to later have to change the data plan back to the Mobile Shared and she told me no. So without her to be able to explain (and with her accent she was difficult to understand), I just cancelled out of the order.

So which was correct? The website or the customer service rep?  I haven't been able to find out. 

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Dwight A. Hunt, Sr. A+, MCP
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