Can NOT Manage Plan - No Button or Link

So none of these support articles match my exact situation. I got a new computer and needed to edit a photo. I went to use (supposedly free) Adobe Express. I am an Instructor so chose Adobe Express for Education - K12 Edition.  I did not know I was ordering a plan, I just went to use Adobe Express. I later received an email of this Plan for $0. I now wish to order Creative Cloud Pro for Students and Teachers. I am unable to order this plan due to having this Adobe Express for Education - K12 Edition plan. I even called support and they were unable to assist (how is that?), but stated I need to cancel this one plan before I could order the plan I now want. They stated they were escalating the issue (3 days ago) and were supposed to call back with the solution. They kept telling me to go to Manage Plan, but there is no manage plan button or option. I did NOT order it through a third party; I just went to quickly use Adobe Express to resixe 1 photo. It seems rediculous that I unknowing ordered a plan and can not cancel it so that I can pay them money to get the Creative Cloud Pro for Students and Teachers plan. One would think Adobe support should be able to do anything administratively; apparently not.