Proof of benefits website (PIP)

1 Hi, Received my pip review form in the post, filled it out and sent it back. Got a text message on the 8th May saying they had received my form. I have logged into 'Manage your benefits and State Pension' service to check proof of benefits and nothing is currently there, where as before, my PIP claim was. Today's date is 13th May so only 4 working days since I received the text message. Surely it can't have been decided that quick and I also haven't received a text message saying they have made a decision. When PIP is being reviewed is your current proof of benefits removed from that website? Thanks for your time