She would need to apply for a new deal @Hp so she has it in her name.
Once set up you need to call customer services while you are both present so she can take the number and you can authorise it.
There are some alternative numbers and hints on getting through in the guide below.
Guide: Coronavirus Community Help and Support
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here
