I read on a website I don’t have to sign the S172 form, is this correct?

The recipient of the request is responsible for the consequences of not completing the form properly; if you do not do this we will return the Notice without extending your time for completion.

If a properly completed form is not received by this office either via royal mail or online within the specified timescale you may be summonsed to the Magistrates’ Court for the offence of ‘Failing to Furnish’.