Unfortunately, this won't be if use to you but it might be for others.
For LPAs registered on or after 17.7.20, third parties can be given a code to access the online details of the LPA.
https://publicguardian.blog.gov.uk/2020/09/09/use-a-lasting-power-of-attorney-your-questions-answered/
"How does the Use a lasting power of attorney service work?
Customers whose LPAs are registered by the OPG (this is the last thing we do before returning it to you) on or after the 17 July 2020 will receive an LPA reference number and activation key in their registration letter. Both attorneys and donors on the LPA will receive these details.
They can then visit www.gov.uk/use-lpa to create an account and add the LPA by using the reference number and activation key, along with their date of birth.
Once the LPA is added, the customer can choose to share the details by generating a secure access code to provide to third party organisations.
The third party can then view the LPA details by going to www.gov.uk/view-lpa, adding the customer name and secure access code.
This enables the organisation to check the LPA is valid and offers a downloadable version of the LPA summary to save for their records.
Who is this service available for?
This service is available to users with an LPA registered on or after 17 July 2020. We are currently working on making this available for older LPAs from earlier in 2020 and some from 2019, but don’t yet have a date for this.
Both attorneys and donors can use this service as they both receive an LPA reference number and activation key in their registration letters.
Any organisation can access the summary of the LPA once they have been provided with a secure access code from the user. They don’t need to register to use the service.
So long as they have the donor’s name and the access code, they will be able to view the summary of the LPA and see if the LPA is valid."