Got a technika tv from tesco middle of August. Put it all together when I got it, but thought it was wobbly on its stand. I now realise that there are some screws which screw in the base but that were in the box of the tv I got. I called them and they need a copy of my receipt which I cant find anywhere. Did anyone else who got a technika 22" tv from tesco get the screws which screw in the base?