Here are the 17 pools you can buy tickets for. Buying a ticket from a specific pool grants you one ticket for that item. Buying a ticket for the General Pool, grants you one ticket for any of the items in the General Pool.
You must have an account on helpingtawy.com (registration at the bottom of the page) and the purchase utilizes PayPal. If you have a PayPal account, you will use that in the normal fashion. If you do not have PayPal account, you can purchase with a credit card through PayPal.
If you have neither, please contact Hezetra at [email protected] and the details will be worked out.