vsro silk per hour how to set a limit

Can someone Tell me how I can make an Maximum amount of Silks, Like if some have 350 Silks thats the Script dont give him more

I think i can change it Here:

Quote:

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WHEN @totalMinutes >= (SELECT [Step3Silk] FROM [_Silk/Hour-Config] WHERE [Desc] like 'Requirements')
THEN (SELECT [Step3Silk] FROM [_Silk/Hour-Config] WHERE [Desc] like 'Rates')
WHEN @totalMinutes >= (SELECT [Step2Silk] FROM [_Silk/Hour-Config] WHERE [Desc] like 'Requirements')
THEN (SELECT [Step2Silk] FROM [_Silk/Hour-Config] WHERE [Desc] like 'Rates')
WHEN @totalMinutes >= (SELECT [Step1Silk] FROM [_Silk/Hour-Config] WHERE [Desc] like 'Requirements')
THEN (SELECT [Step1Silk] FROM [_Silk/Hour-Config] WHERE [Desc] like 'Rates')
ELSE (SELECT DefaultSilk FROM [_Silk/Hour-Config] WHERE [Desc] like 'Rates')
END

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I tried a declare with IF ELSE, but i failed, can some one Help me :P ?