To pay for bithost servers, you must top up at least $10 in BTC, LTC, XRP, BCH, BSV, DASH, DOGE, EOS, ETH, USDT.ERC20, XMR, or ZEC.
Servers are billed on per-hour basis and don't require a minimum period of usage. If you used a server for less than a month, you only pay the hour-based usage. Servers are billed as long as they exist even if they are powered off. If you no longer need a server, delete it to avoid further charges.