Insulin Pump

Johnathan’s doctor wants him to get a new pump which will deliver his insulin better when needed. The insurance will not cover a new pump for 3 more years. The pump company has a program that requires me to pay for the new pump $700 and when his old pump is returned there will be a refund of $400.  As I have been unemployed for a couple of months, it is all I can do to keep rent and recurring bills paid. Any help would be greatly appreciated. Getting Johnathan on the new pump will really help his control of his Diabetes!