This seems to be an issue since cloduflare registrar consolidated payments and billing/invoices;
On 7th Feb, multiple domains renewed as expected
On 8th Feb, $146.72 taken, invoice issued
On 9th Feb, $52.40 taken, no invoice, no entry in the Cloudflare dashboard invoice section
On 14th Feb, domain renewed, payment taken, no invoice emailed, but availabe in the dashboard
On 16th Feb, $52.50 refunded to my payment method. No email, no trace of this in dashboard.
So, while Cloudflare did detect the error and refund me; I did not. I have many Cloudflare payments and invoices due to having a large domain portfolio, that I have just assumed that they have been correct up until now.
If they had not refunded me, I probably would never have noticed and would have lost this money.
What I would like, is an explanation of what happened and ideally, some sort of invoice that shows what happened as I will need to account for this in my own accounts when reporting my taxes.
This is still ongoing