Membership of les Collectionneurs' loyalty program is free when you open a les Collectionneurs customer account. If you would like to close your customer account, you will also have to give up your loyalty programme benefits. To do this, log into your account on lescollectionneurs.com, then click on "Settings". You can here delete your account :
By deleting your account, all of your cashbacks will be deleted without the possibility of recovering them.