Source: https://www.fbtools.io/withdrawal/
Timestamp: 2019-04-24 03:48:14+00:00

Document:
The customer, therefore you, may revoke the contract without giving reasons in writing (ex. letter, fax, email) within 14 days. The period begins upon receipt of this instruction in writing, but not prior to closing and also does not fulfill our obligations under Article 246 § 2 in connection with § 1 paragraph 1 and 2 EGBGB and our obligations according to § 312g paragraph 1 sentence 1 BGB in conjunction with Article 246 § 3 BGB. To safeguard the withdrawal period is sufficient to send the revocation.
In case of an effective cancellation the mutually received benefits returned and any benefits (ex interest rates) surrendered. If you can not or in part, or return them only in deteriorated condition give us the performance received and benefits (ex. benefits), you have to pay us compensation. This can cause you to withdrawal must fulfill the contractual payment obligations for the period nevertheless. Obligations to refund payments must be fulfilled within 30 days. The period begins for you with the sending of the revocation, for us with their receipt.
Your right expires prematurely if the contract is completely fulfilled by both parties at your explicit request before you have exercised your right. If you are a business within the meaning of § 14 German Civil Code (BGB) and act in exercise of your commercial or self-employment act upon while concluding the contract, the right of withdrawal is evoked. The right of withdrawal does not exist when the delivered good is manufactured according to customer specifications, according tp § 312 paragraph 4 no. 1 BGB.

References: § 2
 § 1
 § 312
 § 3
 § 14
 § 312