Decided to return the set (to Makro) and found that according to their invoice, after 28 days 'no quibble return' they offer a manufacturer's support service where the customer is supposed to get in touch with the manufacturer, (presumably) return the item to them, and wait.
I bought the set almost exactly six months ago but I don't fancy all the hassle that last is likely to cause so, am I not right in thinking that my 'contract' is with Makro, and they have to accept the return of faulty goods in the circumstances?