If it's that much of an issue, cancel the order and look for a different tap elsewhere! That could have been done privately without her flying monkeys. However, doing it privately wouldn't have given the opportunity for ebegging and hoping for someone else to offer one for free.
I've spent AGES looking at boiler taps as I fancy one, and they all seem to be a pretty standard size, and from what I've read, if you've had a standard 35mm tap hole there already it's pretty easy to fit one without needing any work done. And if this tap is so hard to comeby that she cannot just Google and find another supplier, it suggests that they aren't common, the tap wasn't there to cut to, and therefore a joiner/kitchen fitter has probably just cut a standard size...so she could fit any other bloody standard boiler tap (or non-boiler tap). So I don't think this comes across as anything more than them hoping the tap appears with a refund apology from VP, or some other company saves the day offering it discounted or free.
Ah, but remember the free dining table! In fact was the table just free or was that potentially for paid content too? That was drama over nothing. She definitely couldn't have it in her home of terrible decor because of a scratch!