Just to add to Neil's (very good) answer if you look at the guidance notes it says the Project Manager MAY decide to pay for either a large quotation or lots of smaller ones. The very fact they wrote this must suggest that there are situations where they should consider paying.
I think NEC contracts generally are about encouraging good behaviors. To not pay for such quotations would certainly encourage the wrong Contractor behaviors where they would not put the effort in with quotes if they have done so previously and not been paid.
I think NEC contracts generally are about encouraging good behaviors. To not pay for such quotations would certainly encourage the wrong Contractor behaviors where they would not put the effort in with quotes if they have done so previously and not been paid.