The cap on the Service Charge element of the cost of a call to a directory enquiries number starting 118 came into effect on 1 April 2019. The limit is £3.65 per 90 seconds of a call.
This has resulted in the complete withdrawal of the following Service Charge price points:
SC068, SC069, SC080, SC070, SC071, SC072, SC087, SC088, SC089, SC090, SC091.
In addition, the following Service Charge price points are no longer allowed for use by services operating on numbers starting 118 (but are still allowed for premium rate services operating on numbers starting 09):
SC063, SC064, SC065, SC043, SC044, SC083, SC045, SC085, SC086, SC073, SC096, SC097, SC098, SC099, SC100.
https://www.ofcom.org.uk/consultations-and-statements/category-1/directory-enqui...