received NVC welcome letters need to comply within 1 year

[Karen1980 0]

I am confuse my petition was approved in F1 category filed only last year 2020 . I received welcome letter through NVC with case number and invoice number and stating that I need to communicate to the  NVC within 1 year or else my case will terminated. How can I communicate and start when the message in my CEAC account say. 

" Due to the numerical limitations on immigrant visa issuance prescribed by law, 
this petition is not eligible for further processing  at this time. The National 
Visa Center (NVC) will retain the petition until an immigrant visa becomes 
available.  The NVC will notify the petitioner, principal applicant, or attorney 
of record when this petition is eligible for further processing.  The principal 
applicant should not make any firm plans such as disposing of property, giving 
up jobs, or making travel arrangements at this time." 

I am aware that my priority date is in the year 2020 and in visa bulletin F1 processing is only year 2012. What happen in my welcome NVC letter that i need to comply  within the span of one year ? is my case will terminated because an immigrant visa not available? i am confuse

[skyline0610 0]

This mean you need to fill up paperwork during 1 year. How long takes this there will know