you option is to double check with Bitpanda that your email address that they have on file is correct. If you're not getting their emails, and it's not in your spam folder, then chances are they're either sending to the wrong address because that's what they have on file... or your email system is broken.
Chances are that no one here can help you with any of this
Your only option is to attempt to troubleshoot your email system (What email provider are you using?) or the BitPanda system with the help of BitPanda support.