Buysmart Bed Bug Killer 750ml Trigger Spray

I have used this product twice . Second time quite severe infestation. Obviously spraying must be totally comprehensive . Did beds, mattresses, skirting boards, sofa, nooks and crannies . Totally successful . Second spray in one or two locations sprayed again . Used 3 x 750 ml on two bedrooms and living room . Follow instructions . Bugs and traces of bugs are very conspicuous, mercifully !

I hate it!