Jens
We are relaying what the responsible Minister and the DWP are saying, this is a process change by the DWP, not a legislative one so there is no way to hold them to account other than via your MP.
It's not entirely clear when the three months run from but the latest date would seem to be 23 April although it could have started before then, what will happen at the end of July we don't know and probably won't until mid-July.
I would double-check whether yours was extended for only a month, whilst it is not impossible it does seem very unlikely given that assessment processes were suspended for three months.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
