NON EEA family members (My questions)

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hi there good people
Im Serbian married to a german woman who works in UK.
Since Im NON EEA national and she is EEA national.
I applied first for FAMILY PERMIT. Which is valid 6 months.
Im in UK now, 2 months already, also got a job! I live in a flat in uk with my german wife, we pay bills together.... I made my insurance number also, since I need it for my job. I also made uk bank account.
I also applied for RESIDENCE CARD EEA2 form! 5 years
Waiting for positive respond. I did got COA from HO.

My questions are:
I have mother and sister in Serbia. What are my possibilities to get my non eea family in uk?
Is it possible to get at least my mother to the uk.
What kind of form I can use...
What are my next step?
If I get RC can I get them through my uk status? Or through my wifes eea national status?
Please if someone can explain me all the thing bout this matter.

[scoutunderground]

anybody?

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any help?

[Wanderer]

Do you wholly or mainly support them financially?

[scoutunderground]

Do you wholly or mainly support them financially?

Wholly sir. I support my mother wholly. My sister supports herself. But I would like first to get my mum to uk.
since shes old.
what are my chances..
which forms should i apply first and on which bases..

[scoutunderground]

anyone to help more?

[scoutunderground]

people please help, which form I have to aapply