you can do it urself.
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3 q& o+ ~; n7 J! ], f. ~ h3 Ttake the brand name of ur lock, go to a locksmith store, you can find the inner parts with keys.: k; {" l. S6 |; s4 |
change the inner parts, u will be good, it is much cheaper than replace the whole locks.* c$ x: l, z- W1 f; `
& z3 b$ \$ ?% ]* ~ _if it is complicated locks or u have 3-4 locks need to replace, call the locksmith store." |/ x9 d0 ?# q+ v7 r% \
u can find the number in yellow page, choose the one which near you. |