To report any highway related issues - https://www3.northamptonshire.gov.uk/councilservices/northamptonshire-highways/roads-and-streets/Pages/report-highway-problem.aspx
Tax, benefits & pensions
Child Support Agency Enquiries - 0800 171 2033
Contact your Local Jobcentre Plus - https://find-your-nearest-jobcentre.dwp.gov.uk/
HM Revenue and Customs - 0300 200 3300
Pensions Claim Line - 0800 731 7898
Citizens Advice have great expertise on benefits matters and debt advice among other things. More about them can be found here.
Refuge 24hr Domestic Abuse Helpline - 0808 2000 247
Other useful numbers
Police - emergency: 999
Police - everything else: 101
NHS Direct - 111
You can find your Councillor by entering your postcode here.