For customers using any of Zen's "Plus" packages, such as Line Rental Plus, all 03 calls are free. This includes 0345.
If any customers have been charged for 03 calls, this is a mistake, please call into our Customer Billing team on 01706902000 Opt1, Opt3 to arrange a credit. You can check your itemised call history by logging into your Customer Portal account - https://portal.zen.co.uk
Customers not using the "Plus" packages will pay standard rates for the 03xx calls they make - https://www.zen.co.uk/yourhome/phone/
03 numbers are non-geographic numbers charged at geograpic rates.
*Link edited - thank you.
Edited by ZenInternetPR (Wed 14-Dec-16 16:32:04)