PLZ HELP i do not know what or how to ask for payment

PLEASE forgive me as i struggle to explain what i need to say and it might be hard to follow but i am begging for help and advice due to urgency please help? Due to serious issues which i am fighting for my kids as being disabled does not mean you are not a active parent, to then also suffer with m/h that i got support for MYSELF, fail a memory test and told significantly poor memory loss and referred to memory clinic by gp, to then be told my tests i have yearly have caused so much concern then scans show 10cm mass in my ovary, enlarged spleen with vaines or somthing like that, then a contracted gallbladder with lots of stones inside and also CBD. Bloods still being higher i was then rereferred to 2 hospital specialist which put me on waiting list to be seen my Dr also sent me for CT SCAN thinking it will take weeksor even months to get seen. My scan and hospital was brought forward. I had ct scan on thursday evening and today i was sent txts email calls asking me to call my Dr to speak about results. Now they have foundaissue with my top lungs and nodules and something else and now being seen by 2 more teams. so to say my mind has been a mess to which i had forgot to fill and send review form but missed my assessment phone call. My PIP was due to stop in 2026 as they told him that when we called PIP. Then my money was not same amount to then call and told they had stopped my awardment. My support worker called them 3 weeks when my benefit stopped and told them what has gone on and they said i can ask for a mandatory review and sent forms out and i must fill it out and send it back. PLEASE IS THERE ANYWAY i can have my pip being given and for it to be re started and get them to keep it open while it is being reviewed? i have a mobility car and due to my health if i lose my car but even it causing issues due to the money as that was spent on items, help even therapy. i am not able to use other transport i have only ever in 14yrs used the car that is on mobility scheme they now want that back and those will know but truly understand losing 1 or both of them that was my only independence not having to always rely on people or carers what is the point? is there any way that they can re start my awardment while my claim is being reviewed i dont know who or what to ask or say and need help and advice please. I have been on PIP for a very long time due to different disabilities which have since become worse i have never been denied or ever had to appeal the review and im so scared and worried CAN THEY START MY CLAIM UP WHILE IT IS BEING REVIEWED DUE TO THE ABOVE BUT DUE TO MISSING REVIEW DATE AND ASSESSMENT? IS THERE EXSPECTIANL CIRCUMSTANCES WHICH THIS CAN BE GIVEN? any help would be so needed please? tysm