diff --git a/htdocs/compta/prelevement/card.php b/htdocs/compta/prelevement/card.php
index 8a232377ab7..6de7d5f1c39 100644
--- a/htdocs/compta/prelevement/card.php
+++ b/htdocs/compta/prelevement/card.php
@@ -102,21 +102,6 @@ if (empty($reshook)) {
 		}
 	}
 
-	// Seems to no be used and replaced with $action == 'infocredit'
-	if ($action == 'confirm_credite' && GETPOST('confirm', 'alpha') == 'yes') {
-		if ($object->statut == 2) {
-			$res = -1;
-			setEventMessages('WithdrawalCantBeCreditedTwice', array(), 'errors');
-		} else {
-			$res = $object->set_credite();
-		}
-
-		if ($res >= 0) {
-			header("Location: card.php?id=".$id);
-			exit;
-		}
-	}
-
 	if ($action == 'infotrans' && $user->rights->prelevement->bons->send) {
 		require_once DOL_DOCUMENT_ROOT.'/core/lib/files.lib.php';
 
@@ -184,12 +169,6 @@ if ($id > 0 || $ref) {
 		print '<div class="error">'.$object->getErrorString(GETPOST('error', 'alpha')).'</div>';
 	}
 
-	/*if ($action == 'credite')
-	{
-		print $form->formconfirm("card.php?id=".$object->id,$langs->trans("ClassCredited"),$langs->trans("ClassCreditedConfirm"),"confirm_credite",'',1,1);
-
-	}*/
-
 	$linkback = '<a href="'.DOL_URL_ROOT.'/compta/prelevement/orders_list.php?restore_lastsearch_values=1'.($object->type != 'bank-transfer' ? '' : '&type=bank-transfer').'">'.$langs->trans("BackToList").'</a>';
 
 	dol_banner_tab($object, 'ref', $linkback, 1, 'ref', 'ref');
diff --git a/htdocs/compta/prelevement/class/bonprelevement.class.php b/htdocs/compta/prelevement/class/bonprelevement.class.php
index 25751a50df0..18216c1cda6 100644
--- a/htdocs/compta/prelevement/class/bonprelevement.class.php
+++ b/htdocs/compta/prelevement/class/bonprelevement.class.php
@@ -332,74 +332,6 @@ class BonPrelevement extends CommonObject
 		}
 	}
 
-	// phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
-	/**
-	 * Set credite and set status of linked invoices. Still used ??
-	 *
-	 * @return		int		<0 if KO, >=0 if OK
-	 */
-	public function set_credite()
-	{
-		// phpcs:enable
-		global $user, $conf;
-
-		$error = 0;
-
-		if ($this->db->begin()) {
-			$sql = " UPDATE ".MAIN_DB_PREFIX."prelevement_bons";
-			$sql .= " SET statut = ".self::STATUS_TRANSFERED;
-			$sql .= " WHERE rowid = ".((int) $this->id);
-			$sql .= " AND entity = ".((int) $conf->entity);
-
-			$result = $this->db->query($sql);
-			if (!$result) {
-				dol_syslog(get_class($this)."::set_credite Erreur 1");
-				$error++;
-			}
-
-			if (!$error) {
-				$facs = array();
-				$facs = $this->getListInvoices();
-
-				$num = count($facs);
-				for ($i = 0; $i < $num; $i++) {
-					/* Tag invoice as paid */
-					dol_syslog(get_class($this)."::set_credite set_paid fac ".$facs[$i]);
-					$fac = new Facture($this->db);
-					$fac->fetch($facs[$i]);
-					$result = $fac->setPaid($user);
-				}
-			}
-
-			if (!$error) {
-				$sql = " UPDATE ".MAIN_DB_PREFIX."prelevement_lignes";
-				$sql .= " SET statut = 2";
-				$sql .= " WHERE fk_prelevement_bons = ".((int) $this->id);
-
-				if (!$this->db->query($sql)) {
-					dol_syslog(get_class($this)."::set_credite Erreur 1");
-					$error++;
-				}
-			}
-
-			/*
-			 * End of procedure
-			 */
-			if (!$error) {
-				$this->db->commit();
-				return 0;
-			} else {
-				$this->db->rollback();
-				dol_syslog(get_class($this)."::set_credite ROLLBACK ");
-
-				return -1;
-			}
-		} else {
-			dol_syslog(get_class($this)."::set_credite Ouverture transaction SQL impossible ");
-			return -2;
-		}
-	}
-
 	// phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
 	/**
 	 *	Set direct debit or credit transfer order to "paid" status.