Your overcharge bill alone is more than I pay for a dedicated server running at 100mbit full duplex with no bandwidth restrictions and a service level agreement. You should seriously consider switching supplier rather than asking for donations. I don't know what's available in the US, my deal is elsewhere, but it's still a standard commercial package and so my suspicion is that you will find a better deal elsewhere if you take some time to look around.
Also it sounds as though you may have bought some sort of "web package" from someone instead of buying a dedi and doing it yourself. If this is the case, scrap that now that you've grown and purchase a dedicated solution instead. It will pay dividends in the long run.