Can't get verification code for app store.

I'm trying to sign into to the app strore view my purchases and install Logic.

I'm using OS 10.9.5.

When I enter my Apple ID and password it askes for the verifcation code received on other devices.

Normally I receive one on my phone, even though it's quite old - iPhone 4s.

But in this case I never receive one.

And there is no option to say 'I didn't recieve a verification code, please text me one etc' (like there was when I signed into this forum.

So I'm a bit stuck - and I need to install Logic.

Can anyone help, please..