1 Invalid verification code
2 May be the users have already forgotten the password
3 Use of landline can be a big problem
4 Email server issue
5 The device which you are using can be containing fault .
1 Invalid verification code
2 May be the users have already forgotten the password
3 Use of landline can be a big problem
4 Email server issue
5 The device which you are using can be containing fault .