Apparently Moving and Updating Billing Address is more of a pain than one thought.

Just went to pay for our server, for a full year, just over $200 for the 16 slots and + 400MB ram.
Paypal: Rejected. Way more than enough to pay thanks to donations. Why? No details mentioned.
Direct Credit/Debit Card: Declined. No detailed mentioned either.

I'm suspecting it's because my billing address hasn't been updated everywhere. For now, I payed with what referral credits we had for the next 3 months. I've now restarted the server with the new 16 slot and + 400 MB ram, this also includes the ram boost we get just for upping from 10 to 16 slots.

We are now running at 1800MB ram, costing $32 Per month. Note: If we pay 3, 6, or 12 months time, we get a discount. Plus 5% discount added since we have been with HGS for a year.

Once we start getting more donation money and credits than it costs to run the server, I'll increase the slots and ram. If everyone wants to keep the server small, let's say no more than 16 or 20, I can still keep the server at such a number while upping the slots. At least then we can still get the increase in memory without the worry of overloading the server with players.