Product code 855FT Convector Heater with Timmer 2kw @£22.99 came with two light thin plastic black feet, each with 4 holes in (8 holes in total) yet supplied 4 x phillips screws. Instructions simply say attach with self tapping screws (?) and there is only 1 hole per bottom side of convector that a screw will not go into anyway. I know i’m blonde but am I missing something? How on earth do these feet fit this product?? I rang screwfix customer line but he had no idea of the problem. I’ve tried You Tube but to no avail. Can someone advise please? Thank you.