Changing Packages - Not Working

I am trying to switch from OptimoMás to MiEspañol, but from both my end and from the side of Customer Service Representatives, there appears to be something wrong with the system. It continuously told us that we need to log in even though were and when we tried to log in we receive an error of the website being unreachable. OptimoMás has been amazing, but we are ready to narrow down our watching with the new MiEspañol and save some money along the way. The service rep told us that we could either keep checking back daily to see if the system is working, or to cancel our plan, wait until the end of the billing cycle and then reapply to the new plan using a different email address. Why is this so difficult? I (or at least the reps) should be able to easily switch plans. Has anyone else encountered this issue?

Note: We have tried to get this done on different devices (phones, app, website), internet connections (home, library, work), plus the Customer Service Rep using Directv's own system all to no avail.