Don't worry about it.
Each company has different ways of dealing with applications. Most don't advertise as such for low hour pilots because it costs money and they don't have to. So by putting a well written personal covering letter to that company you have at least let them know you are there.
They may respond to you with a letter or email they may not.
You can put your CV in in Jan and get no contact but then a phone call 6 months later occurs. Usually telling you to get your backside somewhere the next day. Then afterwards telling you the type rating course starts on Monday. and tough if you have a holiday booked.
MJ