Pls Guild Me Joint Claim Problem

[Favour100]

Please Dear moderators and lovely members help me,
I have recently Retained my Right of Residence after divorce with my ex wife, it was a long story but in short during a relationship with my EEA ex wife i was issued a 5 years resident card and i was claiming CB and CTC for my child from another non eea woman,

After the divorce and issued ROR my non eea current partner move in with me and i decide to apply for a joint claim, i have filled the forms and return it back to hmrc, my current partner is currently subject to immigration control, she does not have right to remain in the country, today they (hmrc) sent her a form called TC1120 to fill because she does not have National Insurance Number and ask her to send her passport, children birth cert and my passport and my HO documents
Question Is------
Will Joint claim affect my PR next year?
Can she send her colored photocopy passport?
Can i send my photocopy documents and passport as well as i always need it for job? Do i really need to send them my docs??
Will they issue her NI after they received the forms?
Am entitled to claim CB & CTC as non EEA family member before and after ROR??

Please i am looking forward you guys helping me out i dont want to loose my ROR,
thanks for your reply and your time

[Favour100]

Please is there anyone to help me out, any suggestion will be h will be highly welcomed, I have not send the for out yet please please

[redding]

what was the outcome and process ?

[Dapson]

@favour100 .. Just one question please .. Is the child benefit was on your name while you still with your ex eu spouse pls.. Bcs am getting it on my name aswel and I dnt knw if it wil have effect on PR application please .. Urgent