To dispose of a fridge freezer in the UK, you can follow these steps:

1. Contact your local council to inquire about bulky waste collection services.
2. Some retailers offer a collection service when delivering a new appliance.
3. Take the fridge freezer to a local recycling centre.
4. Consider donating or selling the appliance if it is still in working condition.

Remember to remove any food and defrost the appliance before disposal to prevent any leaks or spills.