Contact number for HR shared services for ex member of staff please

Thank you for your question. I don't have access to specific contact information for HR Shared Services for ex-members of staff.

You could:

1. Checking any departure documentation you received when leaving your role, as this often contains relevant contact information for former staff

2. Write to them and ask for a call back. The postal address is: Unity Business Services, Operations, HMRC, Teville Gate House, Newcastle 
NE98 1ZZ

3. If you're trying to access pension information specifically, you might need to contact MyCSP (for Civil Service pension queries) Other ways to contact us - Civil Service Pension Scheme