on the 3rd.Dec.2018, there was a drainage blockage at our property. 24/7 home rescue sent one technician over in the evening. The technician removed tree leaves from the top of the filter, and then took out the filter, but the blockage was still there. Then the guy opened up two covers of the drainage well, then used two pcs of rod, finally he managed to unblock the blockage in the drain. But today when we called 24/7 home rescue to ask for 35 pounds refund which was taken by 24/7 on 03.Dec.2018, the staff said the money could not be refund to us because drain blockage was caused by kitchen oil and grease. How can the kitchen oil make a blockage at 25 meters away from kitchen?