Xiaomi Robot Vacuum Mop Pro 2 Water Tank Broke

I bought a Xiaomi robot vacuum mop Pro 2 less than a year ago, and the water tank for the mop has broken. I want to purchase a replacement, but I couldn't find it anywhere despite multiple searches and inquiries. I've contacted Xiaomi's own service, and they mentioned they would assist if I send the vacuum with all its parts. However, I don't want to send the entire vacuum to the service, I just need the spare part and am willing to pay for it. It's frustrating that I can't use the product I paid 8,000 to 9,000 for just because I can't find a replacement part for sale.