There was a problem refreshing. Cannot acquire lock for model because it is currently in use

Had a similar issue last Monday and called Micorsoft Support and initally were told wait 24 hours and it will clear. Our report refreshes every two minutes for a reason and u want us to wait 24 hours????  Inbetween the time we submitted our ticket and when MS got to us we had built a duplicate dataflow and moved connnections. A week later after some prodding was told that it can be resolved sooner if needed by calling Microsoft, however no contact information or instructions were given on how to do that if it was needed again. Thanks for helping Microsoft out with there support.