Have installed Orin Manchester WC but the seat became loose after about a month. Went back to the shop for after sales service. They said they will arrange for Orin repair team to visit but nobody came. Went back to the shop, they gave me a hand phone number to call in-charge person. called the number but no reply, going to voice mail. checked the internet for Orin sales office.... cant find any... it has been more than two months but unable to solve this problem. anybody can help. thanks.