diff --git a/apps/wei/templates/wei/weimembership_form.html b/apps/wei/templates/wei/weimembership_form.html
index b19353c1..1fc4e43c 100644
--- a/apps/wei/templates/wei/weimembership_form.html
+++ b/apps/wei/templates/wei/weimembership_form.html
@@ -160,7 +160,8 @@
                         <div class="alert alert-danger">
                             {% with pretty_fee=fee|pretty_money %}
                             {% blocktrans trimmed with balance=registration.user.note.balance|pretty_money %}
-                                The note don't have enough money ({{ balance }}, {{ pretty_fee }} required). The registration may fail.
+                                The note don't have enough money ({{ balance }}, {{ pretty_fee }} required).
+                                The registration may fail if you don't credit the note now.
                             {% endblocktrans %}
                             {% endwith %}
                         </div>
diff --git a/apps/wei/views.py b/apps/wei/views.py
index b9edcbe9..b8dd8fa2 100644
--- a/apps/wei/views.py
+++ b/apps/wei/views.py
@@ -855,7 +855,7 @@ class WEIValidateRegistrationView(ProtectQuerysetMixin, LoginRequiredMixin, Crea
             form.add_error('bus', _("This user didn't give her/his caution check."))
             return super().form_invalid(form)
 
-        if not registration.soge_credit and user.note.balance < fee + credit_amount:
+        if not registration.soge_credit and user.note.balance + credit_amount < fee:
             # Users must have money before registering to the WEI.
             form.add_error('bus',
                            _("This user don't have enough money to join this club, and can't have a negative balance."))
diff --git a/locale/de/LC_MESSAGES/django.po b/locale/de/LC_MESSAGES/django.po
index 6de28c01..257522b0 100644
--- a/locale/de/LC_MESSAGES/django.po
+++ b/locale/de/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-08-10 18:08+0200\n"
+"POT-Creation-Date: 2020-08-10 19:56+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -1570,7 +1570,7 @@ msgstr ""
 
 #: apps/registration/templates/registration/future_profile_detail.html:64
 #: apps/wei/templates/wei/weimembership_form.html:140
-#: apps/wei/templates/wei/weimembership_form.html:198
+#: apps/wei/templates/wei/weimembership_form.html:199
 msgid "Validate registration"
 msgstr ""
 
@@ -2441,21 +2441,21 @@ msgstr ""
 #, python-format
 msgid ""
 "The note don't have enough money (%(balance)s, %(pretty_fee)s required). The "
-"registration may fail."
+"registration may fail if you don't credit the note now."
 msgstr ""
 
-#: apps/wei/templates/wei/weimembership_form.html:169
+#: apps/wei/templates/wei/weimembership_form.html:170
 #, python-format
 msgid ""
 "The note has enough money (%(pretty_fee)s required), the registration is "
 "possible."
 msgstr ""
 
-#: apps/wei/templates/wei/weimembership_form.html:178
+#: apps/wei/templates/wei/weimembership_form.html:179
 msgid "The user didn't give her/his caution check."
 msgstr ""
 
-#: apps/wei/templates/wei/weimembership_form.html:186
+#: apps/wei/templates/wei/weimembership_form.html:187
 msgid ""
 "This user is not a member of the Kfet club for the coming year. The "
 "membership will be processed automatically, the WEI registration includes "
diff --git a/locale/fr/LC_MESSAGES/django.po b/locale/fr/LC_MESSAGES/django.po
index bd310301..0d94e2c3 100644
--- a/locale/fr/LC_MESSAGES/django.po
+++ b/locale/fr/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-08-10 18:08+0200\n"
+"POT-Creation-Date: 2020-08-10 19:56+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -1609,7 +1609,7 @@ msgstr "Valider le compte"
 
 #: apps/registration/templates/registration/future_profile_detail.html:64
 #: apps/wei/templates/wei/weimembership_form.html:140
-#: apps/wei/templates/wei/weimembership_form.html:198
+#: apps/wei/templates/wei/weimembership_form.html:199
 msgid "Validate registration"
 msgstr "Valider l'inscription"
 
@@ -2528,12 +2528,12 @@ msgstr ""
 #, python-format
 msgid ""
 "The note don't have enough money (%(balance)s, %(pretty_fee)s required). The "
-"registration may fail."
+"registration may fail if you don't credit the note now."
 msgstr ""
 "La note n'a pas assez d'argent (%(balance)s, %(pretty_fee)s requis). "
-"L'inscription va échouer."
+"L'inscription peut échouer si vous ne rechargez pas la note dès maintenant."
 
-#: apps/wei/templates/wei/weimembership_form.html:169
+#: apps/wei/templates/wei/weimembership_form.html:170
 #, python-format
 msgid ""
 "The note has enough money (%(pretty_fee)s required), the registration is "
@@ -2541,18 +2541,19 @@ msgid ""
 msgstr ""
 "La note a assez d'argent (%(pretty_fee) requis), l'inscription est possible."
 
-#: apps/wei/templates/wei/weimembership_form.html:178
+#: apps/wei/templates/wei/weimembership_form.html:179
 msgid "The user didn't give her/his caution check."
 msgstr "L'utilisateur n'a pas donné son chèque de caution."
 
-#: apps/wei/templates/wei/weimembership_form.html:186
+#: apps/wei/templates/wei/weimembership_form.html:187
 msgid ""
 "This user is not a member of the Kfet club for the coming year. The "
 "membership will be processed automatically, the WEI registration includes "
 "the membership fee."
 msgstr ""
-"Vous devrez également vous rendre à la Kfet pour payer votre adhésion pour "
-"l'année à venir. L'inscription au WEI inclut l'adhésion au BDE."
+"Cet utilisateur n'est pas membre du club Kfet pour l'année à venir. "
+"L'adhésion va être faite automatiquement, l'inscription au WEI inclut le "
+"coût d'adhésion."
 
 #: apps/wei/templates/wei/weimembership_list.html:24
 msgid "View unvalidated registrations..."