Sick of waiting

Hi all. I am sure this is not a new thing to you, but I have asked for a home health assessment. I sent evidence (letter from g.p. asking for home visit on physical and mental health grounds. And I put in a discharge letter from a hospital dept. saying what they seen on x rays) in and they got it 24th December by registered post. They have changed my appointment twice befor then. When we rung to see if they had the letters, we got told no one had looked at them and they would send out a letter giving a date for going to one of their centres, but they would contact me by phone or letter between then and now to let me know what their decision is. If I did not hear out by the 13th Jan 19 (yesterday) I was to ring and ask what was going on.  So I did. It was 'You have changed the appointment twice so it cant be done again'Worlds . (No they had). No evidence asking for home visit was received. (Yes it was, they singed for it.) We will email your local centre now and see what they say and they will ring you mid morning and let you know whats happening, its now 10:40am and nothing. The appointments at 1:15pm!.
I feel I am getting stitched up here and no one has seen the evidence or request. Any advice quick please what to do. I hate the place. My hearts racing everytime I think of the place tears come. I got stitched up there years ago when I had an assessment a few months after my hubby died. I'm starting to panic, I just can't go there. Help me someone