@Mika Hakkinen - usually the total number of refreshes relates to the contract period. Also usually the number of Sandbox refreshes in a contract is equal to the number of months of the contract - NetSuite assume 1 refresh per month. However you are not limited to 1 per month - you can use them all in month 1 if you really wish to. I assume you have a 36 month contract?

Hi, is there an additional charge if you go over the number of refreshes?

Yes - you can buy more refreshes if required.