Printroom Printroom.com Rip Off. Company is keeping money owed to clients Internet

Printroom has not paid me profit check in over 4 months, they owe me close to $500. I have called four times and sent three emails over the past 60 days. Printroom is a store front for photographers to upload their photos and Printroom accepts payments from photographers clients to print photographs in return the photographer is to receive a profit check. As stated in Printroom's contract the photographer will receive his profit check once $100 is accumulates in profits in the account. Once the minimum amount of $100 is achieved, Printroom is supposed to mail out the profit check the following month on the 15th. Printroom is a RIP OFF! I feel that photographers need to know that Printroom will not pay owed profit checks.  This has been a continuing problem for the past year.  Sometimes after three months of phone calls a check arrives but this time no one is responding to my calls or emails.  I have over 30 Brides with there images up-online with them and it will be very time consuming to switch to another company.   I now know this will have to be done but I want the money that is owed to me.