Is it valid to be dismissed by SMS from the employer? Please help answer, thank you!

1. Whether the employer's dismissal SMS notification is valid depends first on who sent this SMS, and then can you prove who is using this mobile phone?

2. If the employer unilaterally terminates the labor contract, it may require the employer to pay double economic compensation for the illegal termination of the labor contract.

3. If the contract is not signed for more than one month, you can ask for double salary from the second month and double salary from July 3.

4. Labor disputes can be applied for labor arbitration at the place where the contract is signed or the place where the contract is performed.