I have two suggestions:
Put ads on your page, so you can get some funds to refill the website. (Google adsense is the best paying)
And could you please include a 5% Plan for 12hrs?
Mhmmm , this could be a good idea my friend

I am now trying to add fourth plan option 5% for 12 hours,..
I'm not sure if googleads will allow my site to be accepted but I will try to find out
Thank you