What services are offered for the elderly/disabled to help with ameren bills and property taxes?

My mother is 78, on dialysis 3-4 days a week. lives alone, except for her dog. is not able to work due to 100% reliance of her pacemaker. She is on a fixed income and hasnt extra money...barely covers her groceries, in fact she spends $1.31/day on a hamburger from mcd's bec thats about all she can eat, anyway, she needs help with her ameren bills and property taxes. they used to have a homestead exemption program, but apparently that is no longer available. Any other suggestions? Ameren told her to get a job...if only...