If you also asked for the server to be cancelled right away, they will have refunded the full amount to your Credit Balance (Otherwise the credit to be refunded goes poof). Leave it there while the refund is pending. They will have let you know how long refunds can take to be processed in their response.
Also if you have submitted any additional tickets regarding the refund, please close them and stick to the original ticket otherwise it gets confusing for support and takes a bit longer.
Unsure on the Start Time Of The Day, is this just for new saves or everytime the server is turned on?
What setting should it be as a max for Darkness intensity multiplier? Suggestions I can pass along?
I normally set the darkness intensity multiplier to 2.5-3.0 range. Never tested the upper limits to see what it looks like. Maybe a limit of 50 wouldn't hurt.
I usually set around it to around 2.5 also