My wife has a brand new account with 2Degrees. Every thing appears to work well except she can't receive calls from Spark mobiles. I can call her from my Vodafone mobile and it works fine with other 2Dgrees mobiles. She can ring Spark mobiles okay.

When a Spark mobile calls her it gets a number unobtainable tone ( or something lie that).

We have tried contacting both Spark and 2Degrees to get it fixed. 2Degrees says the phone is fine. Spark says the number hasn't been allocated.

How do I get 'this resolved?