It was mentioned that the donatewiki default amount options (without hpc) don't match what we have in banners, and that we should update them.
Changes that need to be made:
- US/CA/AU/NZ: $3 to $2.75
- GB: £3 to £2
- Euro countries: €3 to €2 - this is a pain because it needs to be updated for each country individually :(
- and check the rest