What is the authenticity of SMS notification pre-admission

Not reliable, now many diploma workshops are just SMS notifications. If you have received the admission notice from the national unified recruitment college and then received the SMS notice from the school, it is credible. There is no notice of national unified recruitment, and everything else is false. Diploma workshop tricked you into going in. When you graduate, you will find that your diploma is worthless, which is equivalent to studying for several years in vain.