If you have any questions regarding payments that you have made, we can only verify them through your Transaction ID's. Here's how you find your Transaction IDs on Facebook:
click the little gear box on the top right hand corner of your Facebook Homepage.
click the downward arrow and click on Settings as highlighted below.
on the left hand side of the following screen, select payments.
click on the purchase history section on the right hand side
a drop down will emerge, there you should select the date range of the purchase in question and click apply. this will give you a list of all the transactions that you have carried out to date.
then click on the price and you will finally gt tot he transaction id. this is the information that we need when looking into transactions.