gazump

ɡəˈzʌmp/

verb

BRITISHinformal

gerund or present participle: gazumping

1. 1.

   make a higher offer for a house than (someone whose offer has already been accepted by the seller) and thus succeed in acquiring the property.

   "the trio are fuming after they were gazumped by a property speculator"
2. 2.

   dated

   swindle (someone).

   "I gazumped a friend of mine with complete success last night"

Belinda aware when  you  sell a property