So you have not got a Barclays bank account, but now you have an email from them you think is a scam.
So what do you think?
Of course it is a scam
The people who send out these emails are HOPING that the people who get the emails have got a Barclays Bank account.
If you send out enough emails (and these people send out millions) then you are bound to get lucky and find some people who get them are Barclays customers and fall for the "con".
ALWAS ignore any sort of email you get like this, from any sort of organization, they will always be a scam.