Is it safe for Taobao to refund your mobile phone number?

It is safe for Taobao to ask your mobile phone number for money. Taobao sellers mostly cash back in this way. Alipay accounts are all their own mobile phone numbers, and you won't get an Alipay account without a password. Cash back from praise means that consumers give praise to sellers after completing online shopping transactions, and send screenshots of praise to sellers, who then return a small amount of cash or shopping vouchers to consumers. This behavior widely exists in e-commerce platforms and many local service platforms.