Thank you for your email received by us on 10 March 2017 asking for information about how many people are asked for identification when making a complaint.
                                                                                                                                                                                          
Your request has been considered in accordance with the requirements of the Freedom of Information (FOI) Act and our information access policy. 

I can confirm that we hold the information you require. You asked:

How many of the people reporting complaints last year got asked for ID?

We do not routinely ask for ID when a customer makes a complaint unless we need to send a refund, in these instances we do not require proof of address.

If this is not the information you are looking for, please do not hesitate to contact me.

Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed.

Yours sincerely

Paulina Tuffour
FOI Case Officer

FOI Case Management Team
General Counsel
Transport for London