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What is 'ghost gazumping' and why is it on the rise?

Rising house prices mean getting on the property ladder is harder than ever, but they have also led to a rise in 'ghost gazumping'.

This is when sellers demand more money at the last minute - even after the sale has been agreed - because they think their house or flat has increased in value.

Tony Bonsignore hears from one would-be buyer who experienced it twice.

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