diff --git a/bfxapi/rest/endpoints/rest_authenticated_endpoints.py b/bfxapi/rest/endpoints/rest_authenticated_endpoints.py
index 1493489..9ec3ca0 100644
--- a/bfxapi/rest/endpoints/rest_authenticated_endpoints.py
+++ b/bfxapi/rest/endpoints/rest_authenticated_endpoints.py
@@ -347,8 +347,26 @@ class RestAuthenticatedEndpoints(Middleware):
             "limit": limit
         }) ]
 
-    def get_invoice_count_stats(self, status: Literal["CREATED", "PENDING", "COMPLETED", "EXPIRED"], format: str) -> List[InvoiceCountStats]:
-        return [ InvoiceCountStats(**sub_data) for sub_data in self._POST("auth/r/ext/pay/invoice/stats/count", body={ "status": status, "format": format }) ]
+    def get_invoice_count_stats(self, status: Literal["CREATED", "PENDING", "COMPLETED", "EXPIRED"], format: str) -> List[InvoiceStats]:
+        return [ InvoiceStats(**sub_data) for sub_data in self._POST("auth/r/ext/pay/invoice/stats/count", body={ "status": status, "format": format }) ]
 
-    def get_invoice_earning_stats(self, currency: str, format: str) -> List[InvoiceEarningStats]:
-        return [ InvoiceEarningStats(**sub_data) for sub_data in self._POST("auth/r/ext/pay/invoice/stats/earning", body={ "currency": currency, "format": format }) ]
\ No newline at end of file
+    def get_invoice_earning_stats(self, currency: str, format: str) -> List[InvoiceStats]:
+        return [ InvoiceStats(**sub_data) for sub_data in self._POST("auth/r/ext/pay/invoice/stats/earning", body={ "currency": currency, "format": format }) ]
+
+    def complete_invoice(self, id: str, pay_currency: str, deposit_id: Optional[int] = None, ledger_id: Optional[int] = None) -> InvoiceSubmission:
+        return InvoiceSubmission.parse(self._POST("auth/w/ext/pay/invoice/complete", body={
+            "id": id, "payCcy": pay_currency, "depositId": deposit_id, 
+            "ledgerId": ledger_id
+        }))
+
+    def expire_invoice(self, id: str) -> InvoiceSubmission:
+        return InvoiceSubmission.parse(self._POST("auth/w/ext/pay/invoice/expire", body={ "id": id }))
+
+    def get_currency_conversion_list(self) -> List[CurrencyConversion]:
+        return [
+            CurrencyConversion(
+                base_currency=sub_data["baseCcy"], 
+                convert_currency=sub_data["convertCcy"], 
+                created=sub_data["created"]
+            ) for sub_data in self._POST("auth/r/ext/pay/settings/convert/list")
+        ]
\ No newline at end of file
diff --git a/bfxapi/rest/types.py b/bfxapi/rest/types.py
index 3d659b4..a2dd647 100644
--- a/bfxapi/rest/types.py
+++ b/bfxapi/rest/types.py
@@ -564,20 +564,21 @@ class DerivativePositionCollateralLimits(_Type):
 #endregion
 
 #region Type hinting for models which are not serializable
+
 @compose(dataclass, partial)
 class InvoiceSubmission(_Type):
     id: str
     t: int
+    merchant_name: str
     type: Literal["ECOMMERCE", "POS"]
     duration: int
     amount: float
     currency: str
     order_id: str
     pay_currencies: List[str]
-    webhook: str
-    redirect_url: str
     status: Literal["CREATED", "PENDING", "COMPLETED", "EXPIRED"]
     customer_info: Optional["CustomerInfo"]
+    payment: Optional["Payment"]
     invoices: List["Invoice"]
 
     @classmethod
@@ -585,6 +586,9 @@ class InvoiceSubmission(_Type):
         if "customer_info" in data and data["customer_info"] != None:
             data["customer_info"] = CustomerInfo(**data["customer_info"])
 
+        if "payment" in data and data["payment"] != None:
+            data["payment"] = Payment(**data["payment"])
+
         if "invoices" in data and data["invoices"] != None:
             for index, invoice in enumerate(data["invoices"]):
                 data["invoices"][index] = Invoice(**invoice)
@@ -595,7 +599,6 @@ class InvoiceSubmission(_Type):
 class CustomerInfo(_Type):
     nationality: str
     resid_country: str
-    resid_state: str
     resid_city: str
     resid_zip_code: str
     resid_street: str
@@ -604,6 +607,23 @@ class CustomerInfo(_Type):
     email: str
     tos_accepted: bool
 
+@compose(dataclass, partial)
+class Payment(_Type):
+    transaction_id: str
+    amount: str
+    currency: str
+    method: str
+    status: str
+    confirmations: int
+    created: str
+    updated: str
+    deposit_id: int
+    ledger_id: int
+    force_completed: bool
+    amount_diff: str
+    additional_payments: JSON
+    additional_payment: JSON
+
 @compose(dataclass, partial)
 class Invoice(_Type):
     amount: float
@@ -614,13 +634,14 @@ class Invoice(_Type):
     ext: JSON
 
 @dataclass
-class InvoiceCountStats(_Type):
+class InvoiceStats(_Type):
     time: str
     count: float
 
 @dataclass
-class InvoiceEarningStats(_Type):
-    time: str
-    count: float
+class CurrencyConversion(_Type):
+    base_currency: str
+    convert_currency: str
+    created: int
 
 #endregion
\ No newline at end of file
diff --git a/examples/rest/merchant.py b/examples/rest/merchant.py
index 9e85d88..7a4c835 100644
--- a/examples/rest/merchant.py
+++ b/examples/rest/merchant.py
@@ -20,17 +20,25 @@ customer_info = {
     "email": "satoshi3@bitfinex.com"
 }
 
-print(bfx.rest.auth.submit_invoice(
+invoice = bfx.rest.auth.submit_invoice(
     amount=1,
     currency="USD",
     duration=864000,
     order_id="order123",
     customer_info=customer_info,
     pay_currencies=["ETH"]
-))
+)
 
 print(bfx.rest.auth.get_invoices())
 
 print(bfx.rest.auth.get_invoice_count_stats(status="CREATED", format="Y"))
 
-print(bfx.rest.auth.get_invoice_earning_stats(currency="USD", format="Y"))
\ No newline at end of file
+print(bfx.rest.auth.get_invoice_earning_stats(currency="USD", format="Y"))
+
+print(bfx.rest.auth.get_currency_conversion_list())
+
+print(bfx.rest.auth.complete_invoice(
+    id=invoice.id,
+    pay_currency="ETH",
+    deposit_id=1
+))
\ No newline at end of file