Hello and welcome to the forum.
Is the wing beyond repair?.I'm guessing the wings are plastic on the Modus?.
If you do need a replacement wing,you have a couple of options.
1/A brand new wing from Renault (no aftermarket parts appear to be available),this will need painting and the surrounding bodywork will need to be 'blended'.
2/Source a second hand wing (preferably in the same colour) and either fit yourself or get a garage/bodyshop to fit it.
The second option is definitely cheaper,try an online parts finder like findapart or 1stchoicespares to source one.I would be 99.9% sure the Modus and Grand Modus show identical front ends.
One thing to keep in mind is if the wing is badly damaged then there maybe further damage behind it,the wing liner,inner wing,even the suspension could be damaged too.