Betamax Incoming route DID number

I'm having some trouble with a VoipCheap.com (Betamax) VoipIn number, it works fine with a incoming route set to any CID/any DID, but I'm having trouble setting a DID in the route.

[Jul 31 17:20:52] VERBOSE[2612] logger.c: -- Executing [s@from-sip-external:1] GotoIf("SIP/5060-b69090a9", "1?from-trunk||1") in new stack
[Jul 31 17:20:52] VERBOSE[2612] logger.c: -- Goto (from-trunk,s,1)
[Jul 31 17:20:52] VERBOSE[2612] logger.c: -- Executing [s@from-trunk:1] NoOp("SIP/5060-b69090a9", "No DID or CID Match") in new stack
[Jul 31 17:20:52] VERBOSE[2612] logger.c: -- Executing [s@from-trunk:2] Answer("SIP/5060-b69090a9", "") in new stack
[Jul 31 17:20:52] VERBOSE[2612] logger.c: -- Executing [s@from-trunk:3] Wait("SIP/5060-b69090a9", "2") in new stack
[Jul 31 17:20:54] VERBOSE[2612] logger.c: -- Executing [s@from-trunk:4] Playback("SIP/5060-b69090a9", "ss-noservice") in new stack
[Jul 31 17:20:54] VERBOSE[2612] logger.c: -- Playing 'ss-noservice' (language 'en')

Any idea why I'm getting [s@from-sip-external:1] rather than the DID or how to get around the problem ?