If your phone is CID 49 you can patch unlock it yourself (for free).
;W300 SW-R9A036
;Remove SIM-Lock
;(c) IronMaster
;(p) stuck
+44140000
C94220: 70B5041CF0F21EF800230022011C1C20 F0B505213A22D1F72FFD0020F0BDC046;W300 SW-R4EA031
;Remove SIM-Lock
;(c) IronMaster
;(p) m1ch43lzm
+44140000
c99d64: 70B5041CF1F2E6FB00230022011C1C20 F0B505213A22D1F72FFD0020F0BDC046