If you have an EIN for the trust, then use that number.
Otherwise, use your SSN and individual.
I would not use the EIN of the trust if the account earns interest, dividends, etc. because the 1099 issued under the trust EIN might then require you to file a grantor trust return just so you can report the earnings on your 1040. however, if it's a non-earning bank account the trust EIN is fine. The same advice would apply if other earning assets are included in the trust. EIN = grantor trust if gross earnings over $5600 SSN = no grantor trust regardless of earnings.
Yes, you really do need to speak with a real person.
That should be a one on one with a tax professional who understands these rules, and can read your documents and understand what is in the trust.
The regulations 1.671-4 provide guidance on reporting for grantor trusts.
There are too few facts to provide a best response, and only vetting out the facts of your specific situation can tell you what you need to do.
It's a grantor trust so @linlouvan needs to decide which option to use for reporting income.
See https://www.irs.gov/instructions/i1041#en_US_2022_publink1000286020
Clearly, it would be optimum to not report on a 1041 as it does little other than increase the compliance burden.