"INR=TRB" is a valid RIC, so Elektron APIs should be well-suited to pull the data.
Elektron APIs work with EMS, EC or deployed infrastructure, so are well-suited.
We have documentation on Elektron APIs, please select the language that works best for you. EMA is quicker to learn and less coding required then ETA.
Hope this helps, if not, please let us know the details on the issue they experience.
I did not include the specific links as the client would still have to choose the language and the API level (EMA or ETA).
If the client is looking to get started with elektron API of their choice, for example, with EMA Java, quickly and efficiently, and create a consumer application, we recommend starting with Quickstart Guide and then proceeding to EMA tutorials, Introduction, Bare Bones Consumer, Requesting MarketPrice, Decoding market Price.
If the client would like to study specs first, please refer to Developer Guide, Reference Manual for API specs and to Thomson Reuters Model Duscovery for the content specs and the full description of the content.
Please introduce them to the developers portal and encourage to use the forum, so they can help themselves to the info that they would like to have?