diff --git a/openapi.json b/openapi.json
index 8eee23e..8abd481 100755
--- a/openapi.json
+++ b/openapi.json
@@ -6797,6 +6797,16 @@
           "type": {
             "description": "Specifies the media type of the related resource.",
             "type": "string"
+          },
+          "min_amount": {
+            "description": "Minimum allowed amount for the refund.",
+            "type": "number",
+            "format": "float"
+          },
+          "max_amount": {
+            "description": "Maximum allowed amount for the refund.",
+            "type": "number",
+            "format": "float"
           }
         },
         "title": "Link"
@@ -7606,6 +7616,7 @@
           "apple pay",
           "google pay",
           "paypal",
+          "twint",
           "na"
         ],
         "title": "Entry Mode"
@@ -10382,6 +10393,7 @@
           "APPLE_PAY",
           "GOOGLE_PAY",
           "PAYPAL",
+          "TWINT",
           "NONE",
           "CHIP",
           "MANUAL_ENTRY",
diff --git a/src/main/java/com/sumup/sdk/models/EntryMode.java b/src/main/java/com/sumup/sdk/models/EntryMode.java
index f24f2d6..492a3ca 100644
--- a/src/main/java/com/sumup/sdk/models/EntryMode.java
+++ b/src/main/java/com/sumup/sdk/models/EntryMode.java
@@ -31,6 +31,7 @@ public enum EntryMode {
   APPLE_PAY("apple pay"),
   GOOGLE_PAY("google pay"),
   PAYPAL("paypal"),
+  TWINT("twint"),
   NA("na");
 
   private final String value;
diff --git a/src/main/java/com/sumup/sdk/models/EntryModeFilter.java b/src/main/java/com/sumup/sdk/models/EntryModeFilter.java
index 6f4b53c..d6b4c75 100644
--- a/src/main/java/com/sumup/sdk/models/EntryModeFilter.java
+++ b/src/main/java/com/sumup/sdk/models/EntryModeFilter.java
@@ -21,6 +21,7 @@ public enum EntryModeFilter {
   APPLE_PAY("APPLE_PAY"),
   GOOGLE_PAY("GOOGLE_PAY"),
   PAYPAL("PAYPAL"),
+  TWINT("TWINT"),
   NONE("NONE"),
   CHIP("CHIP"),
   MANUAL_ENTRY("MANUAL_ENTRY"),
diff --git a/src/main/java/com/sumup/sdk/models/Link.java b/src/main/java/com/sumup/sdk/models/Link.java
index ac5a229..82570b8 100644
--- a/src/main/java/com/sumup/sdk/models/Link.java
+++ b/src/main/java/com/sumup/sdk/models/Link.java
@@ -6,6 +6,12 @@ public record Link(
     /** URL for accessing the related resource. */
     String href,
 
+    /** Maximum allowed amount for the refund. */
+    Float maxAmount,
+
+    /** Minimum allowed amount for the refund. */
+    Float minAmount,
+
     /** Specifies the relation to the current resource. */
     String rel,
 
@@ -23,6 +29,8 @@ public static Builder builder() {
   /** Builder for Link instances. */
   public static final class Builder {
     private String href;
+    private Float maxAmount;
+    private Float minAmount;
     private String rel;
     private String type;
 
@@ -39,6 +47,28 @@ public Builder href(String href) {
       return this;
     }
 
+    /**
+     * Sets the value for {@code maxAmount}.
+     *
+     * @param maxAmount Maximum allowed amount for the refund.
+     * @return This builder instance.
+     */
+    public Builder maxAmount(Float maxAmount) {
+      this.maxAmount = maxAmount;
+      return this;
+    }
+
+    /**
+     * Sets the value for {@code minAmount}.
+     *
+     * @param minAmount Minimum allowed amount for the refund.
+     * @return This builder instance.
+     */
+    public Builder minAmount(Float minAmount) {
+      this.minAmount = minAmount;
+      return this;
+    }
+
     /**
      * Sets the value for {@code rel}.
      *
@@ -67,7 +97,7 @@ public Builder type(String type) {
      * @return Immutable Link.
      */
     public Link build() {
-      return new Link(href, rel, type);
+      return new Link(href, maxAmount, minAmount, rel, type);
     }
   }
 }