The daily transaction limits depend on your region.
You can find the specific details for per-transaction limits on the MoonXBT official website.
We currently cannot increase these limits for specific customers.
The daily limit is calculated not as a calendar day, from 00:00 till 23:59, but as a 24-hour period since purchasing.
MoonXBT calculates the monthly limit as a 31-day period since the last purchase that reached the limit, not as a calendar month.