Mobility scooter/medical equipment

Hello, as a lot of you know I have an ongoing heart condition and am in and our of hospital regularly. I am currently on oxygen and been put on the waiting list to eventually have a heart transplant. I find it very difficult to get around as I get breathless and tired easily, so therefore have been currently renting a mobility scooter however the weekly costs of this is taking a toll on us financially and we are awaiting an assessment from social services but the waiting list is long. I am asking for your help in costs of buying my own, I would really appreciate it has been vital in giving me some independence and allowing me to get out and about with my children. Thank you in advance from the bottom of my heart XXX