The implementation couldn't resolve 2 major problems of the challenge

[kiendt1985]

The implementation couldn't resolve 2 major problems of the challenge: security without registration, request voucher timeout

[MrNocTV]

Hi @kiendt1985, first of all, thank you for your review.

I get the second point, however I don't think I get the first one.

Would you mind explain a little bit more about without registration?

Here I imagine in my head that to get the token without registration (create an account), we can use OTP as a login mechanism. The logic to verify the OTP is omitted for simplicity.