No it wasn't.
You can't just make things up.
There are criminal offences of rape within a specific legal definition.
There are criminal offences of sexual activity with children aged under 16.
There are criminal offences of having sex with a trafficked person, whether you know they have been trafficked or not and that you pay that came in in 2010 and criminal offences of having sex with a trafficked person with or without knowledge or making payment that came in in 2015.
There is no UK criminal offence that says having sex with a trafficked person is rape.
You can want it to be true and you can say it is morally but it doesn't make it a criminal offence.
Which is why unless evidence of criminal offences come to light, Andrew hasn't been investigated for having sex with VG in 2003 because it wasn't legally rape and also wasn't legally a criminal offence at that time.