You may be discouraged from doing that as a CRP▸ person but anyone with any knowledge of the rail system will always offer assistance to those who need it. I do quite often.
Indeed, Roger ... and having due considerations for the reasons why not to assist when around, plus the "because we say so" reason of the dictat, I balance that against the passenger's situation. Where staff are around, it can be just a question of passing customers on.
And in reality, wearing a TransWilts T shirt and my name, it's not unusual to get chatting or to be asked rather than taking any formal step to help.