stormax SG U can tried Thomson Plaza. They repair big packets 2 smaller ones. N have been there for a long time. they r well known.
BrUtUs SG j8 basement got pet shop... go there and ask.... if u want to save $$$, u can go kovan mrt and walk up from there(after the nasi lemak) got one pet shop sell dog food i think is cheap... just look out for a shop with 2 chow chow...