Stanley Thermos Lid Handle Broke and Needs Replacement Part

I have a Stanley top-handle thermos that I believe is the 850 mL model, and the handle attachment on the lid broke approximately one month ago. Since the broken part is part of the handle used to carry the thermos, it makes the thermos more difficult to carry and reduces its overall usability.

Because this thermos was given to me as a gift, I do not have the exact purchase date or invoice information. Nevertheless, I would like to obtain a replacement part specifically for the broken lid handle, or, if possible, a complete replacement lid.

Although I do not have an invoice because the thermos was a gift, I would like to emphasize that it is an original Stanley thermos and that I actively use it. I kindly request an appropriate solution for the broken handle attachment and assistance in obtaining a replacement part or lid.