NEUROP-1236

• The issue was a double notification send when SwedBank and have SMTP as mail provider
• Added double check for both sendgrid and SMTP in SwedBank callback
• Now checks if a same mail have been sent before

NEUROP-1234

• It seems the issue was caused by the payment window being closed too quickly. The payment status was automatically updated by the webhook, but the email notification was not sent in order to avoid duplicate notifications.

• This has now been resolved by adding an additional check in the webhook to verify whether the notification email has already been sent. If it has not, the email will now be sent correctly.