Hi shellyh78
Yes you are correct, if you included a mobile number on your application form DWP used to send a text message that your application form has been received.
Since Covid this does not always happen, we recommend that any correspondence sent to DWP is sent by recorded delivery, you can then check on line if it has been delivered, then contact DWP to check it is in their system.
Gary
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
