Dwp phone call, assessment

Hi, my work capability form was sent in a week ago with lots of extra information and lots of evidence from professionals saying that interactions and leaving the house is very difficult, that I go without needed treatment because I can't be anywhere public and that interactions make me more suicidal. Today I got a phone call which I didn't answer as I cannot cope and didn't know the number anyway, then received a text message telling me to travel an hour away for an assessment. Surely they cannot have read everything already and why are they ignoring evidence saying I cannot get to a centre... is it normal to get a phone call? If I had answered would I have avoided a face to face?  3 years ago they put me in the support group just from the form.  Thank you

Thank you Gordon. I can try asking someone to phone them, they also haven't contacted my gp for any information, surely they should have all the info before deciding on whether to do a f2f? Is it usually bad news if they try calling a claiment about their claim?