Hi @Cameron9 yes it's £2 for 24 hours use of your home allowance. Yes you can use your hotspot. If you make calls to local numbers they are charged at international rates. Make sure your phone is capable of calling over VoLTE to be able to make calls in the USA.
If someone has helped give them a thumbs up.
If their answer solved your issue mark it as the correct answer.
I won’t respond to direct messages so please post any problems on the forum.