Unfortunately, we am not able to provide you with Bambino's EIN, as Bambino is not the child care provider. Rather, Bambino is a platform that enables parents to connect with the sitter.  I have connected with our CPAs to make sure that the information I provided you is accurate.  

In order to claim the expenses under dependent care, you would need the sitter's name/address/tax payer ID number.  Per the IRS website for form 2241, If you can't provide all of the information or the information is incorrect, you must be able to show that you used due diligence in trying to furnish the necessary information.

Due diligence.
If the care provider information you give is incorrect or incomplete, your credit may not be allowed. However, if you can show that you used due diligence in trying to supply the information, you can still claim the credit.
You can show due diligence by getting and keeping the provider's completed Form W-10 or one of the other sources of information just listed. Care providers can be penalized if they don't provide this information to you or if they provide incorrect information.
Provider refusal.
If the provider refuses to give you the identifying information, you should report on Form 2441 whatever information you have (such as the name and address). Enter "See Attached Statement" in the columns calling for the information you don't have. Then attach a statement explaining that you requested the information from the care provider, but the provider didn't give you the information. Be sure to write your name and social security number on this statement. The statement will show that you used due diligence in trying to furnish the necessary information.

Please let me know if you would like me to provide you with the individual receipts from your transactions that you can submit with your tax filing.