Many researchers get reimbursed by their institutions or research funding for tools like Litmaps. However, to get reimbursed, you may need a receipt of purchase.
Here are instructions on how to access your most recent invoice from your Litmaps subscription. This is the same whether you have a Monthly or Annual subscription to Litmaps Pro.
To view your latest invoice:
Go to your email, for the address you've signed up for Litmaps Pro on
Search for "Litmap invoice"
Find an email from Stripe labeled "Your receipt from Litmap Limited #"
This email contains your latest receipt information, including the payment amount. You can download the invoice and receipt here.