Lost tabby cat with blue collar near Bullring

I lost my short-haired tabby cat, Milo, yesterday around 3pm near the Bullring Shopping Centre on High Street in Birmingham. He's medium-sized, with orange-brown stripes, a white chest patch, and green eyes, and he wears a blue collar with a small silver tag that reads Milo. He can be shy around strangers and might bolt if approached. This cat has sentimental value—I've had him since he was a kitten and he's my only pet; I’d really appreciate any help finding him.