Can you help me with a code for my van radio/cassette player?

I recently bought a Vauxhall Combo 54 reg and the radio/cassette player is locked. A garage will disconnect the battery to enable me to put the code in but it appears I was given an incorrect code on purchase. There are a number of numbers on the player itself:
Blaupunkt car 2003 UN5,
13127011
453116246
7649200325
8631178274
8635132822