Moving phone numbers between lines, on same account.

Hello.  I upgraded 2 phones recently, and had to add 2 additional lines to my account.  No big deal, I understand the game.  However, when I activated the 2 lines, T-Mobile decided to give 2 random phone numbers to the new lines, instead of adding the 2 phones I just purchased.  They added the 2 new phones to my existing lines, of which have run their 2 year course (mandatory 2 years for each additional line).  When I called to remove the 2 old lines, I was told I could not remove the 2 old lines since they were being used by my new phones, and cannot remove the 2 new lines either since they need to be active for 2 years. *Hope yall are still with me*  I asked if they could move the phone numbers to the 2 new lines (which should have happened to begin with), so I could close the 2 old ones, and they would not do that.  So now I am stuck paying for 2 extra lines that I do not need.  Anyone been in this situation and have some good advice.

So far the only solution I have will risk loosing my current phone numbers, of which I am strongly trying to avoid.  Thank you all.