Let me summarise the proposed transaction.

Someone sends you 15 euros worth of Bitcoin (about 0.013).

You, with absolutely no reason for people to trust that you will do this, send them 15 euros on PayPal.

You then allow the transaction to stay in the 60 days during which you could, for any reason, chargeback the money.

You also expect people to believe that you will generally do this despite several warnings on the forum about this type of transactions and the fact that you have built up no trust and can hardly speak recognisable English.