But there could be a number of reasons your site is suspended, this should be partly outlined in the client area, and I assume as it says, open a support ticket, and find out why, However if for say, SQL or Hits limits, it will be reactivated after 24 Hours
However if it was suspended for abuse as i recently learned, you will have to manually open a support ticket and see if you can get it reacivated
Basically, Open a support ticket and check why, And it is very common to get suspended when first hosting, as you are trying out your new site, and seeing what works.
What do you see in the client area as the reason for the suspension? Are there any links to more information or instructions on how to acquire such information?