perhaps she is abroad and her phone turned off for that reason? i would reckon if she struggles and is away, then i would guess she is going to hold out as long as she can not to pay. maybe last fri being BH wkend and this fri she away? id give it til next fri, give her a warning, and if it happens again, go with notice period agreed on contract. although if you really want her out, you can give the notice period. Not sure if you have to give her a reason tho. if her windows got blown in and your property being vandelised then i reckon tread carefully, she may retaliate!!