Sewland overlockers are crap. Don't buy one. I'm now grumpily going to go to the post office tomorrow, and pay for shipping back, which is obnoxious, I'll lose about £8 that we really can't afford. I'm now looking for a sewing machine that does an overlock stitch.
On a good note, here's the bra I just finished! the coins have been mussed a bit, but they do cover the entire bra no gaps!