diff --git a/lnbits/extensions/boltcards/lnurl.py b/lnbits/extensions/boltcards/lnurl.py
index 9399fb36..a1630e2b 100644
--- a/lnbits/extensions/boltcards/lnurl.py
+++ b/lnbits/extensions/boltcards/lnurl.py
@@ -2,19 +2,21 @@ import base64
 import hashlib
 import hmac
 import json
-import secrets
 from http import HTTPStatus
 from io import BytesIO
 from typing import Optional
 
+from loguru import logger
+
 from embit import bech32, compact
 from fastapi import Request
 from fastapi.param_functions import Query
+from starlette.exceptions import HTTPException
+
+import secrets
+from http import HTTPStatus
+
 from fastapi.params import Depends, Query
-from lnurl import Lnurl, LnurlWithdrawResponse
-from lnurl import encode as lnurl_encode  # type: ignore
-from lnurl.types import LnurlPayMetadata  # type: ignore
-from loguru import logger
 from starlette.exceptions import HTTPException
 from starlette.requests import Request
 from starlette.responses import HTMLResponse
@@ -22,12 +24,17 @@ from starlette.responses import HTMLResponse
 from lnbits.core.services import create_invoice
 from lnbits.core.views.api import pay_invoice
 
+from lnurl import Lnurl, LnurlWithdrawResponse
+from lnurl import encode as lnurl_encode  # type: ignore
+from lnurl.types import LnurlPayMetadata  # type: ignore
+
 from . import boltcards_ext
 from .crud import (
     create_hit,
     get_card,
-    get_card_by_otp,
     get_card_by_uid,
+    get_card_by_otp,
+    get_card,
     get_hit,
     get_hits_today,
     spend_hit,
diff --git a/lnbits/extensions/boltcards/models.py b/lnbits/extensions/boltcards/models.py
index 21096640..80e3b973 100644
--- a/lnbits/extensions/boltcards/models.py
+++ b/lnbits/extensions/boltcards/models.py
@@ -1,8 +1,9 @@
+from fastapi.params import Query
+from pydantic import BaseModel
 from sqlite3 import Row
 from typing import Optional
 
 from fastapi import Request
-from fastapi.params import Query
 from lnurl import Lnurl
 from lnurl import encode as lnurl_encode  # type: ignore
 from lnurl.models import LnurlPaySuccessAction, UrlAction  # type: ignore
diff --git a/lnbits/extensions/boltcards/static/js/index.js b/lnbits/extensions/boltcards/static/js/index.js
index 27536304..33704f3a 100644
--- a/lnbits/extensions/boltcards/static/js/index.js
+++ b/lnbits/extensions/boltcards/static/js/index.js
@@ -190,7 +190,7 @@ new Vue({
           })
         })
     },
-    openQrCodeDialog(cardId) {
+    openQrCodeDialog (cardId) {
       var card = _.findWhere(this.cards, {id: cardId})
       this.qrCodeDialog.data = {
         link: window.location.origin + '/boltcards/api/v1/auth?a=' + card.otp,
diff --git a/lnbits/extensions/boltcards/tasks.py b/lnbits/extensions/boltcards/tasks.py
index a7eea026..bfe4f257 100644
--- a/lnbits/extensions/boltcards/tasks.py
+++ b/lnbits/extensions/boltcards/tasks.py
@@ -7,7 +7,7 @@ from lnbits.core import db as core_db
 from lnbits.core.models import Payment
 from lnbits.tasks import register_invoice_listener
 
-from .crud import create_refund, get_hit
+from .crud import get_hit, create_refund
 
 
 async def wait_for_paid_invoices():
diff --git a/lnbits/extensions/boltcards/templates/boltcards/index.html b/lnbits/extensions/boltcards/templates/boltcards/index.html
index 73e5820b..2a613fda 100644
--- a/lnbits/extensions/boltcards/templates/boltcards/index.html
+++ b/lnbits/extensions/boltcards/templates/boltcards/index.html
@@ -7,7 +7,7 @@
       <q-card-section>
         <div class="row items-center no-wrap q-mb-md">
           <div class="col">
-            <div class="row justify-start" style="width: 150px">
+            <div class="row justify-start" style="width:150px">
               <div class="col">
                 <h5 class="text-subtitle1 q-my-none">Cards</h5>
               </div>
diff --git a/lnbits/extensions/boltcards/views_api.py b/lnbits/extensions/boltcards/views_api.py
index 698e1094..f1e02810 100644
--- a/lnbits/extensions/boltcards/views_api.py
+++ b/lnbits/extensions/boltcards/views_api.py
@@ -2,7 +2,6 @@ import secrets
 from http import HTTPStatus
 
 from fastapi.params import Depends, Query
-from loguru import logger
 from starlette.exceptions import HTTPException
 from starlette.requests import Request
 
@@ -14,20 +13,22 @@ from .crud import (
     create_card,
     create_hit,
     delete_card,
-    enable_disable_card,
     get_card,
     get_card_by_otp,
     get_card_by_uid,
     get_cards,
     get_hits,
-    get_refunds,
     update_card,
     update_card_counter,
     update_card_otp,
+    enable_disable_card,
+    get_refunds,
 )
 from .models import CreateCardData
 from .nxp424 import decryptSUN, getSunMAC
 
+from loguru import logger
+
 
 @boltcards_ext.get("/api/v1/cards")
 async def api_cards(