First of all I would like to thank everyone who commented after my last message. Messages of support are appreciated.
Rather than reply individually, this is the state of play now:

This is a paragraph from Western Union: Quote:
The transfer was paid according to Western Union’s service policies, and the terms and conditions outlined on the back of the “To Send Money” form.

Due to privacy laws applicable to this money transfer transaction, we are unable to disclose the recipient’s identification details. Only a law enforcement agency inquiring on your behalf may request the receiver's identification and the exact payout location. Law enforcement may contact Fexco Money Transfer Ltd directly for any further information regarding the payment of this transfer that may be required as part of their investigations.
Unquote

I have sent an email to WU asking for them to send me the signed receipt from the WU agent in Phils. They said this can take up to 2 weeks.

I have sent my GF texts to tell her that if marriage is our plan, I need 100% trust and I am not getting it.
I told her that someone is lying and that I will not speak to her on the phone until I get the truth.
As you can imagine, I am getting so many "missed calls" as I am not answering her for now. She normally calls me and I call back at 7p per minute. All this has stopped until the truth is out.
She is sending me texts still saying neither her nor her uncle received the money! She is sad.

I will not talk with her until she "comes clean" and tells me the truth. I have told her not to text me as it is costing her, and that the next text I want to receive contains the truth.

The £100 I can write off, it's the trust in what we have been planning together that is the issue for me now.

What I do next I have no idea at the moment. It all depends on how the truth is delivered and what the excuse is.

I know how her family lives. It is a small but clean house on a small island.
I understand poverty (I worked in 13 West African countries and Phils is more advanced than West Africa) but I think she is not looking at the bigger picture. To be honest, all this has got me thinking about scenarios that I have read other people have endured like the GF having a Filipino BF etc.
This is what mistrust does. The perils of LDR.

Assuming there are no problems that I just mentioned, perhaps she just doesn't really know how much her life will change coming to UK.
We have talked about marriage and obtaining her visa and she tells me she loves me etc.....and seems so thankful and happy to be planning things.
She said she would marry me in her island so I do believe that.

Now obviously it could still be the uncle, or both of them as they are tight as a family.

My silence is golden. It is the best thing I can do at the moment.

Thanks again, will report back.