Tricky one that. Technically they've not undercut you...just offered to do more work for the same money. I think they've screwed up here and will soon drop her when they suddenly realise they're working for £8 ph.
Expect her phone call in about 4 months time
Even if someone had deliberatley undercut I would not be bothered with this one. To be honest she's the sort who would have probably told them our pricing anyway before they priced up.
They certainly have screwed up as the conserv sides are standard height, glass top to bottom, no panels at the bottom just framework.20 panels in total 3ft wide with a recess in the middle. More glass in this than her house and the 2 next door. We were underpriced and I guess she got the vibes that a price increase was on the way. Oh yes and she has a locked gate so phone call needed for access, as she will not have anyone climbing over.
As for her calling in the future, well she can, but our listings will be full