hey everyone I am sorry to hear that the site is hard to work with in terms of providing a donation! below are some good ways to get as little trouble as possible when dealing with the site 

when typing in the amount you give use just the number with the cents value (example is 10.00 for ten dollars rather than $10.)

make sure no matter the amount donated you still check a box saying which reward level you will receive.

whether you are paying with a credit card or through paypal still click on the orange button that says check out with paypal. it will give you an option to join which you can decline. 

from there on just make sure the information is entered properly for your name and basic information. The site can be a little glitchy which I've read!

thank you for your patience!!!!