Edhec Admission

Hi guys,

I've just been offered a place at Edhec Business School in France. They ask me to pay a first instalment of 7500€ before April 8th which is according to them, non refundable... However, I am waiting the results of other better ranked schools (ESSEC, ESCP) which will not come before mid-June... I know I can wait a bit more than April 8th for paying the first instalment (up to beginning of May) but by waiting too long, I might see my offer disappear. I called them and asked for the contract to see if the 7500€ were really non-refundable and the man I had on the phone told me there was no contract. I insisted for a legal document such as sales conditions but he answered there was no contract. So my question is the following: are these 7500€ really non refundable? Legally, with no contract, can't I recover them?

Thank you for your help,

Adam