Roca India / Parryware — My western toilet commode cover is not fitting in its position and is always coming out of it

Address:

House no 4 ,Girija nagar, Dhanupali, House no 4 Dist- -Sambalpur State - Odisha

My ceramic one piece western toilet/commode cover is not being fitted on its way where it is to be and it's always coming out and falls please make that ok it's been not an year for me to purchase that and it's showing such problem please kindly send someone to make that ok