Makro ignoring faulty appliance

A faulty appliance bought last year was firstly treated perfectly professionally, collected and returned to the manufacturer for assessment. It was subsequently returned to me with the note 'no fault', yet the fault DOES still remain. Attempts now to get Makro to respond are fruitless I cannot even get them to acknowledge an email. Be careful buying through Makro, the customer service department are not interested in your satisfaction only in closing the file