While not a committee, this is still a key part of Nature London.
Anyone wishing to be reimbursed for pre-approved club expenses needs to provide an invoice for the product or service. And the invoice must provide the HST/GST number of the vendor. While it is easily spotted on cash register receipts, one has to dig a little when purchases are made through Amazon.
Once you have received the item from Amazon, log in and navigate to “Your Orders” underneath “Accounts & Lists”.
Locate the order of interest and click on “Invoice”.
The GST/HST will be somewhere near the top of the PDF of the invoice.
Print the invoice and include it with the reimbursement request.