Withdraw offer

Hi,

In January I received a conditional offer, which I happily accepted. In May and June, I was awarded several scholarships and was waiting for the final decision on the last one. This week I received the outcome, but unfortunately, the amount they can offer is too low to cover the costs.

As a result, I now have to withdraw my acceptance of the offer. I would like to do this in a respectful and professional way, as I intend to apply again for the next academic year (I now understand the system much better).

Should I simply withdraw the offer online, or would it be appreciated if I also send an email? If so, who should I contact? Since it’s already July, I feel a bit uneasy about simply retracting it online without any explanation…

Thanks for your advice!