Plumbing Questions? Ask a Plumber for Answers ASAP
Hello and welcome to JustAnswer! My name is***** a technician with over 10 years of experience, and I'll be assisting you today. Sorry to hear your having issues, please stand by while I look into the problem for you, this is not an immediate service however I will try and respond as soon as possible.
Generally you get three styles of seat, round, open and U shape. Where the replacement is lose it sounds like you just need a plumber to attend and a fix it correctly to the toilet pan.
So in the first instance get a handy man to attend verify its the correct style for you toilet and they will use the correct fixings to stop it from moving once fitted
It was a pleasure to assist you today. I hope the above answers the question. If you are happy for the question to be closed there is no need to reply (as this will reopen the question), however do let me know if you have any follow up questions.
I have been asked to acknowledge I have closed the question, have a great day, should you need further assistance please do reply back and this will reopen the question.