Bad servie and products

I bought an Alva patio gas heater on the way 15/06/2019. The igniter on the heater stopped working on the 10/07/2019. I took the heater back to makro the returns lady explained that in order for the store to test it we need to bring our own gas!! Also she stated that their returns policy for a full refund is within 14days of purchase. None of this was explained to me when i bought the heater and i was asked about the sales consultant who assisted me? Their purchase slip says nothing about their returns. What irritates me is i was told the manufacturer will take 6weeks to analyze it, so in the mean time i must make a plan to keep my family warm. The manager could not even answer my questions as to why the terms and conditions were not explained. I am realy dissatisfied with their service. By the time i get the heater back winter will be over so what is the use.