Royal mail says my international parcel from China has been delivered, but I haven't received it?

Hello everyone,

I have bought a second hand camera from China a month and a half ago and I still haven't received my item in the UK. The thing is my parcel has been delayed for a month in China already and I still do not know the reasons even after contacting air mail China by email as they have not contacted me back!

As I was losing my hope on this item, I found that it has suddenly been dispatched from China into the UK, however the strange thing is royal mail's track and trace has displayed my item has been delivered already and I have not received it yet!!

2014-06-21 10:29, DELIVERED, BANGOR WALES PDO
2014-06-19 09:52, RECEIVED IN UK, HEATHROW WORLDWIDE DC

My address is suppose to be at Hull, and I don't understand why is it all the way in Bangor Wales and being displayed as delivered? Is it 100% delivered or is it still at the delivery office?

Hoping that someone can help me out with this!

Thank you so much!!
Would appreciate any help!