If a continuing obligation is established between a trader and a consumer pursuant to this Subtitle that is intended to substitute a continuing obligation existing between the consumer and another trader, and if on the occasion of the establishment of the continuing obligation the consumer
1. declares the termination of the existing continuing obligation and commissions the trader or a third party commissioned by the latter to transmit the termination to the previous party contracting with the consumer, or
2. authorises the trader or a third party commissioned by the latter to declare the termination towards the party thus far contracting with the consumer,
then the consumer’s termination or the authorisation will require text form.