Warranty
As of December 2024, there is no longer any service center in Singapore for warranty.
You may refer to this page for unofficial information on how to move forward: https://tup.sg/return-retfund-warranty-policies/.
If you still want a practical route to try, community experience suggests checking with Tupperware Malaysia in Johor Bahru first before making the trip.
Tupperware Brands @ Bandar Baru Uda
7, Jalan Padi Emas 3/1, Bandar Baru Uda, 81200 Johor Bahru, Johor Darul Ta’zim
For the short FAQ version, see Tupperware Singapore FAQ.