New Phone Old Number Problem

[jayjayb1978]

I have recently upgraded to a J3 (2016) with Vodafone, this phone is for my wife and we took her old number from Talk Mobile via the PUC code (i think that's what its called) Vodafone sorted it; however, when she texts me via WiFi connection the new sim card number shows on my phone not the number we had transferred from Talk Mobile?

Phone calls and normal texts (sms) my wifes old number shows and is fine.

Vodafone have no ideas...... Anyone??