Resuming(re-activating) a canceled line for T-Mobile Deal

Hello,

I have a family plan which has 7 lines on it. I want to get a deal called "2019 LG Activate and Save 2" but there is rule for it as

"If a voice line has been canceled within the past 90 days, it must be resumed"

I have a canceled line 60 days ago. So, I have to resume/re-activate this line to get this deal. I called customer care and went to Corporate Store but they could not re-activate my previous line because the number that I used on that line was recycled and assinged to another customer. They said they could not do it.

So, how can I take this deal then? There is no any sentence about recycled numbers of canceled lines?

I also asked to open a new account (sub-account) but they said I need to full my family plan first (10 of 10).

As I result of these informations, I will not get the deal or is there any chance for it?

Thank you.