They didn't for us. Mind you, the other driver was paying in our case.
Even if they had, id take that as a win and have - in our case - genuine BMW parts, fitted by trained BMW personnel, using BMW supplied paint (it was a mica finish), and all the bodywork and corrosion warranties left intact, and a nice certificate from BMW to prove it. When your van rusts and VW won't honour the perforation warranty because some work experience lad from Buttcrack Motors on the industrial estate has worked on it in the past you'd regret trying to save the shekels.
The only thing they can do beyond that, and make stick, is decline to do the running around for quotes. But thats fine - the dealer sent me the quote and I forwarded it to the insurer and told them to do what they want, thats where it was being fixed. They don't like it up 'em one little bit because they lose their weighty discounts, but those discounts are based on bottom drawer workmanship and pattern parts from Timbuktu, so sod 'em.
Bottom line is you're lawfully entitled to be restored to the position you enjoyed prior to the claim in all respects ie, repairs of quality comparable to the original state of the vehicle, and any remaining warranties (including bodywork or corrosion) restored or maintained. Anyone coming to view the OPs van in the future with a view to buying it is liable to spot to poor quality parts and fitment and that will in turn lessen the value of the vehicle - that is unacceptable, and the insurer must move to restore him (or her in this instance?) to the position he enjoyed prior to the damage, or else give him the cash to be able to do so.