@Unhappymummy
I hope you are doing well. It is possible that you processed the transaction via " Guest Check Out" . That means, you need not to log in to your Paypal account but paid the transaction directly using your debit/card .That also explains that the transaction is not showing on your Paypal Activity page.
On this case,for you to check if the transaction went through, either you must have received an email confirmation of your order if not, you may send us a message so we can check on our end.
If this post or any other was helpful, please enrich the community by giving kudos or accepting it as a solution 🙂
Stay Safe!
