Yeah the Credit Card thing caught me out too.. I placed a phone call in the end to give them my details.
TBH I'd only use data from the last 3-5 years per sport, going back much past that and you have rule differences, different trends in the sport etc..
They're the best data source I've found though, otherwise you'd have to compile it yourself.. If you had specific requirements you could probably pay someone from a third world country to do it on rentacoder.com or similar, but you'd have to be quite explicit in the instructions.