How to avoid TypeError when calling keyword from the "Run Keyword If" (Robot Framework) - robotframework

Question

I have a nested dictionary inside another dictionary created in .py file.
When I am calling it like that
FOR ${key} IN #{keys}
I fill "${key}" tab on Applicant page with "${data}[${key}]" data
END
it works absolutely fine. However, if I use this call
Run Keyword If $ADD_TO_BANKING_KEY in $keys I add Applicant to Banking with "${data}[${ADD_TO_BANKING_KEY}]" data
I always get an error "TypeError: Expected argument 1 to be a dictionary or dictionary-like, got string instead." when I am trying to use the argument as a dictionary inside "I add Applicant to Banking with ..." function.
Example of the "${data}[${ADD_TO_BANKING_KEY}]": {'Member No.': 'DO_NOT_CHECK', 'Benefit': 'Regular', 'Reason Opened': 'radio'}
How can I solve this issue and do it in the right way?
Thank you!
Update:
First function:
I add Applicant to Banking with "${data}" data
Log To Console \#\#\# I add Applicant to Banking with "${data}" data
I fill "Add To Banking" tab on Applicant page with "${data}" data
Second Function:
I fill "${tabName}" tab on Applicant page with "${data}" data
Log To Console \#\#\# I fill "${tabName}" tab on Applicant page with "${data}" data
#{keys}= Get Dictionary Keys ${data}
FOR ${key} IN #{keys}
I input "${data['${key}']}" to "${key}" element in "${tabName}" tab on "Applicants" page
END
There is a place where it is failed
#{keys}= Get Dictionary Keys ${data}
Third function:
I input "${value}" to "${elementName}" element in "${tabName}" tab on "${pageName}" page
[Documentation] Input ``value`` to ``elementName`` element in ``tabName`` tab on the ``pageName`` page
Log To Console \#\#\# I input "${value}" to"${elementName}" element in "${tabName}" tab on "${pageName}" page
${tempLocator}= Get Locator From DOM ${RETAIL_DOM} ${pageName} ${elementName} ${tabName}
SeleniumExtendedResource.Input Value ${tempLocator} ${value}