I also submitted my application last week but did not receive a confirmation email. I emailed HR to see if they had received my application and the reply was that my details had been sent to the technical team and I would hear from them shortly. I am still waiting for that email. I decided to re-submit my application this morning however, their login system does not recognise my email address.
I contacted HR this morning, they have not received my application and have lost all my details on their database. They said that they are currently having IT problems and they have lost numerous applicant details. They have asked me to re-register and complete another application. I think I will give this one a miss and stay where I am.