Documents Needed from US Sponsor

[gsbuddy]

Hello everybody.. I am applying for change of status from H4 to F1. I need to show 50 grands financial assistance for the same. My mother is sponsoring me 23 grands and my aunt is sponsoring me 30 grands. she gave "Bank Certification Letter" and "Sponsor Commitment Form" for my I20 process and has another original copy of the same. Is this 2 docs enough for me to attend the visa interview?. My class mate says this is enough. I don't want to ask my aunt's Tax returns and Bank Statement since its sensitive..

Please advice.

[kabkaba]

Yes, that is sufficient.