No consideration for online shopping

We bought fridge/freezer combo with the Makro online store. We only had a problem with one of the fridges so we locked a service call as it is within the 2 years Makro gives when you purchase. After the technician was there he said that we should register these fridges on the KIC website because you get 5 year for them. i did that but now they mailed me and said that we are not covered because we did not do it within the first 6 months of purchase. after i explained the reason that we did not know until now they said that the sale consultant should have told us. HOW can a sale consultant tell you if you BUY ONLINE. no response received from them. so now i want to know is the product for 2 years as per Makro or is it for 5 Year as per KIC standard warrantee? Why should we be loose out on the warrantee if we buy online and there is no sales person to advice you