Keep a record of your transactions!

[moneypenny]

I suggest that you keep a record of your online transactions. Most if not all sites are secure but you must be sure what is going where and when.
When I play free money and there is a playthrough I look to see what I have played often I copy the page that shows my transactions to my computer so that when or if I win I have hard copy evidence that I met the playthrough requirements. Do you guys have anything that you do to protect your interests?