small fixes

.env.example

@@ -27,7 +27,7 @@ PAYPAL_EMAIL=
 COMPANY_PHONE=
 COMPANY_ADRESS=
 COMPANY_VAT_ID=
-INVOICE_PREFIX=
+INVOICE_PREFIX="INV"
 
 #set-up for extra discord verification
 DISCORD_CLIENT_ID=

app/Http/Controllers/Admin/PaymentController.php

@@ -205,8 +205,8 @@ class PaymentController extends Controller
                     'name'          => env("APP_NAME", "Controlpanel.gg"),
                     'phone'         => env("COMPANY_PHONE",""),
                     'address'       => env("COMPANY_ADRESS",""),
+                    'vat'           => env("COMPANY_VAT_ID",""),
                     'custom_fields' => [
-                        'VAT ID' => env("COMPANY_VAT_ID",""),
                         'E-Mail' => env("MAIL_FROM_ADDRESS", "company@mail.com"),
                         "Web" => env("APP_URL","https://controlpanel.gg")
                     ],
@@ -214,6 +214,7 @@ class PaymentController extends Controller
 
 
 
+
                 $customer = new Buyer([
                     'name'          => $user->name,
                     'custom_fields' => [
@@ -235,10 +236,10 @@ class PaymentController extends Controller
                     ->series(now()->format('mY'))
                     ->delimiter("-")
                     ->sequence($newInvoiceID)
-                    ->serialNumberFormat(env("INVOICE_PREFIX","").'-{SERIES}{SEQUENCE}')
+                    ->serialNumberFormat(env("INVOICE_PREFIX","INV").'{DELIMITER}{SERIES}{SEQUENCE}')
 
                     ->logo(public_path('vendor/invoices/logo.png'));
-                
+
                 //Save the invoice in "storage\app\invoice\USER_ID\YEAR"
                 $invoice->render();
                 Storage::disk("local")->put("invoice/".$user->id."/".now()->format('Y')."/".$invoice->filename, $invoice->output);