I am raveling to London and i wonder if i'll be able to use my data there (i need it to order UBER)- I have Verizon "Go Unlimited" Plan. If, i can't- is there a way i can add it just for this trip?
Verizon doesn't have a network outside the US. You either have ti sign up for their international plan or us a local prepaid carrier there.
I would certainly recommed adding an international plan on your account when traveling abroad. You can find out more information regarding this using the following link: https://www.verizonwireless.com/support/international-services/