I had a very brief phone call from the DWP regarding my PIP review form. The woman who called me said that an in-house decision has been made due to the medical evidence that I sent, that my award would remain the same for a few years, and that I should receive a letter in 7 days tine to confirm this. However, during the conversation I was told that my PIP claim would now be closed. Is this standard procedure from the DWP after a successful PIP review has been completed and the decision has been made to keep my award at the same rate. Any help would be appreciated. Thanks in advance.