For information on the grant scheme www.suffolk.gov.uk/roads-and-transport/property-flood-resilience-grants-scheme
To report a flood
To report an obstruction in the watercourse
If the drain is blocked by leaves or litter on the surface then call your local authority (who you pay your Council Tax to).
If the drain is blocked and is on a trunk road in Suffolk then call 0300 123 5000 or use the highways reporting tool online www.suffolk.gov.uk/roads-and-transport/flooding-and-drainage/highway-drainage/report-a-problem
If the drain poses an immediate danger then call 0345 606 6171
If the drain is on private land it is either the landowners responsibility (if they are the only ones draining in to it) or the responsibility of the water authority - Anglian Water 03457 145 145
Contact the Environment Agency