Do not worry my friend, we are here to help each other.
I think you should try to talk with other manager, and then explain your situation and ask for a help. At the first time I asked both managers said that they did not have that specific report, and then I explained my point and situation. They were very kind and helpful.
Your answers.
1. Itau provided me a single page document, this way: http://1.bp.blogspot.com/-YYvfwhaiZE0/Vikniw1SpFI/AAAAAAAAIZQ/N3MqNzGhufk/s1600/Atestado%2Bde%2BIdoneidade%2BIta%25C3%25BA%2B-%2BModelo.png
On the other hand, Caixa provided me a longer statement (one page per month, I asked it), that contained full history of those months of my saving account. My manger took almost an hour to prepare it.
2. Yeah, I applied to SINP. I prepared different statements for SINP and EE because SINP requires 3 months of history and EE 6 months.
Moreover, you applied to SINP a few months ago, your proof of funds to EE should be generated I little before you send it to CIC.
If you need help send me a message, if possible, I will help you.