If you have less than a week's notice yourself, we'll do the best we can for you in the circumstances. We charge for disk space beyond the standard allocation for your account. If you use a lot of disk space but your needs are pretty stable, we charge for excess storage on the basis of your average use over the month. That is, if you normally use 17 MB of disk space, but you suddenly are using 163 MB of space and the disk is getting full, we'll charge you for a month of 163 MB usage because of the risk to other users' files if yours cause an overflow. Furthermore, while we will make every effort to preserve your files, we cannot promise that we'll be able to do that in every case.
Problems are especially likely to arise toward the end of the month, when usage logs are large.
You're responsible for the scripts you run. If we find that one of your scripts uses a disproportionate amount of resources we will surely ask you to disable it. If it consumes enough resources that it cripples the server, we will disable it and let you know immediately that we have done so. We will insist that you amend it so that it stays within bounds. We do monitor usage on our servers, and it is our practice to let users know if their scripts appear to be reaching a troublesome point, but we cannot promise that we will notice this in advance.