Change subdomain on free plan

Is it possible to change the subdomain on the free plan?

Long story short, but someone is port scanning and scanning for vulnerabilities on my current subdomain... I tried IP blocking them but they keep on coming back...

Switching subdomains may solve this issue

Not on a free account.

Can I pay for 1 month, change subdomain to and then after the month, cancel the plan and keep the new subdomain?

No, you can't. If you'd like to use a custom PythonAnywhere subdomain it'd need to be something like, too.