Confusing RFIE about Sponsor and Birth Cert.

[TB_ 0]

Hi There, 
I would like to thank everyone in this forum for all the information. I've Submitted my papers almost a month ago. (I-130, I-131, I-485, I-765, I-864).
My wife is US Citizen and I'm on a B1 visa. 

So we received and RFIE and saying:

 

1- Submit all supporting tax documentation (W-2s, 1099s, and all supporting tax schedules) submitted to the Internal Revenue Service for the most recent tax year. Petitioner/sponsor on Form I-864, Affidavit of Support, for the most recent tax year.

 

So my wife and were overseas for the last year and working there. She filed her 2017 tax return via mail and we're still waiting for it. However we've sent the same form to USCIS as well with it's supporting docs. There is no w2s of course overseas but there is a similar document, which we included, provided by the employer and showing all the income and tax hold. Also, we added an explanation letter as well. 

 

I don't know what to about it. Should I just send them again and make different explanation letter? or chase IRS to get a IRS transcripts from them for 2017. I know that would be the most efficient solution but who knows how long they will take to complete the return. 

2- Based on the documents submitted with Form I-864, Affidavit of Support, for the petitioner/sponsor, the income did not meet 125% of the federal poverty line for the petitioner/sponsor's household size. Obtain a qualifying joint sponsor who demonstrates the ability to support you or submit evidence of assets. 

 

So there is this one and the number 3. 

 

3- The petitioner/sponsor lists their current income on Form I-864 as an amount to be considered as sufficient; however, no evidence has been submitted as proof of current income.
Please submit evidence of the petitioner/sponsor's current income. Such evidence should include:
Letter of employment containing the following:
Dates of employment
Nature of the job
Wages or salary earned
Number of hours per week worked
Prospects for future employment and advancement

Pay stubs or other documentation of pay for the previous 6 months.
Evidence of other income. such as Tax-Exempt Interest, Qualified Dividends, IRA distributions, Pension, Annuities and Social Security Benefits

So, my wife's income is way over the poverty line. She did start working 3 weeks before we sent the application. So there wasn't any pay stubs in the application but we included a copy of the work offer. How much she would get paid hourly, her title, contract time. I checked it again but there is not any information about how many hours per week she would work in the offer. 

So, We don't have much assets and we don't know anybody who can be a qualifying sponsor. Do you think it would work that if we just get a letter from her work containing all the info above they're asking and including 4 pay stubs? 

4- Submit a copy of applicant's foreign birth certificate. 

 

I'm from Turkey and we don't have birth certificates like in US. However according to https://travel.state.gov/content/travel/en/us-visas/Visa-Reciprocity-and-Civil-Documents-by-Country/Turkey.html

all I need was send an Extract of Vital Record which I did with a certified translation. Also in the website, it says there is no alternate documents for it. 
Again I don't know what to do. We have an ID cards which it states the place and the date of birth. Also includes mother and father names. Should I just send the ID Card and again an Extract of Vital Record. 
So I'm bit confused. 

Thanks