5 hours ago
5 hours ago - last edited 3 hours ago
I don't think so.
Mobile data while roaming in the USA is a paid option only as far as I know.
Data €0.10/MB
Charges are inc. VAT.
So you need an active membership plan and cash credit on your account to pay for mobile data while roaming in the USA.
I don't think that mobile data allowances from your vault will be of any use in this context.
If you need to contact 48 support about this then see the links in my signature below.