When Shengshitong sends SMS verification code, why does it show that the information failed to be sent?

It may be that the mobile phone number has been deactivated or the mobile phone number is wrong

Shenzhen Shengshitong Electronics Co., Ltd. was established on September 9, 2010. The legal representative is Huang Jinmei. The company's business scope includes: general business projects are: R&D and sales of electronic products, sales of circuit board consumables, domestic trade, etc. The general business items are: R&D and sales of electronic products, sales of circuit board consumables, and domestic trade. (Except projects that are prohibited by laws, administrative regulations or decisions of the State Council and require approval before registration), licensed operating projects.