Samsung Black old model (lost at Electric picinic) back off it

I lost my phone at Electric Picnic, at the food area on Sunday Sept 1st. Late that night a very kind girl my sister from the phone ( one of the last dialled numbers) to say she had it. My sister was in bed, didnt even know I had lost the phone, & didnet even realise the call was from my phone. But they agreeded that the phone be left into Store St Garda station. Its now thursday the 6th. If you are that girl if you could contact me on 0876539975 I will come and get it if you prefer, or leave it to Store st. I would be very grateful as baby photos/memorabillia on it. Thanks again