Employers on HelperChoice receive a large number of application messages from candidates every day. Most of the time only potential candidates will get replies from the employers. If you do not receive a message from the employer you contacted few days ago, you are probably not someone the employer is looking for.
To increase your chance of getting hired,
1) Send more messages to different employers;
2) Customise the message and explain why you are a good fit for the position. Do not send simple messages like 'I am interested'.