BEWARE OF SAWGRASS SG500 INK ON TAKEALOT

I bought some SAWGRASS SG500 Sublimation ink on takealot.They say it's compatible with ur Saw Grass Sg500 and 1000.This ink was R2000 and only to find out on delivery that this ink is not compatible with my printer.I probably won't get my money back which sucks as it's not a R200.How can they say it's compatible an then it's not an now l see the product is non refundable.THATS DAY LIGHT *******.