The more Chelsea has to pay, the more likely she is to do herself and her offspring a favour by deciding to quit.
"Hilary is nipping off to Spain for a long weekend; her daughter Chelsea wants her to buy 40 wraps of heroin as they're a fraction of the price over there and she'll save serious cash. Yet Hilary hates heroin and especially the fact that Chelsea scores in the house where her 5 year old son (and Hilary's grandson) little Bill lives; however if she doesn't buy them Chelsea will buy them elsewhere and they'll be much more costly."
then substitute cigarette related references for something like heroin, and see if the question is clearer:
Travellers returning to England in Oct
Incl Sky, the AA & more
London, Harrogate & Shepton Mallet