Downloaded Bt Wi-fi app, entered my BT username (email address) and password, clicked Login. Took me to BT Application Software Licence Agreement, (read), but no accept or other button showing on screen. Clicked Back but of course took me back to Login page. Tried several times no joy. My iphone 5S is iOS 12.5.7 and so satisfies app requirement for ioS 12 onwards. Please help.