Need Accu-Chek FlexLink Infusion Set

Hi guys! Anyone know how to get Accu-Chek infusion sets cheaper? I got a pump from someone local and it came with about 20 units of infusion sets. I had not looked up the price until tonight and wow could not BELIEVE they are $215 AU for one set of 10! I am on a disability pension and cannot afford that by any means. Would love any info if anyone can help, thanks.