hey everyone got a big problem my dad has gone on holiday and left the bottom lock of our door locked (i dont have the key to that lock =[ ) im at my mums while he has gone on holiday (my perents are devorced

) anywho i want to go and open the door to get a dvd and my xbox 360 (so board without it) i tried going to a locksmith but they cost £50 for them to come and £20 an hour there after well thats my local one, i have the key to the two top locks but dont have the bottom lock which from looking at pictures online its a mortise lock but cant be shure i can post pic's if anyone needs them, thanks