Assistance with legal questions about property transfer

Questioner

I have an MVE home with a resale guarantee within 3 months. I have set the transfer date with the housing corporation on August 18th. Today I am called by the notary that the 18th is not feasible because the housing corporation has submitted a request today and that it will take approximately 10-11 days before my bank (mortgage) delivers my documents to the notary. So the transfer can take place on August 23rd at the earliest. Now it is the case that I have cancelled everything as of the 18th, such as my insurance, parking permit, etc. It is also the case that I have to continue paying my mortgage for 5 days. The housing corporation wants to accommodate me with extra days for my mortgage and homeowners' association. They are going to pay the 5 days. They have admitted negligence. However, I would like to know whether I can recover a fine from them because the transfer is late and that they did not contact me BUT the notary informed me of this. Does the 10% fine also apply here? I'd love to hear from you. Thank you in advance

Lawyer

I don't know the clause in the contract. But it seems to me that the penalty clause applies if the transaction of purchase and sale does not go through at all.