You remain the domain holder of a domain that is in TRANSIT because the domain contract with DENIC you have concluded simultaneously with the provider contract remains valid. A domain going through the TRANSIT procedure stays registered in your name. There is no need to worry that your domain will be deleted simply because you don't have a valid provider contract. The additional services that you used to get from your former provider (such as webspace for a homepage) will probably no longer be available with the termination of the contract or will only remain available for a short period of time. To find out the details, please contact your former provider.
However, you cannot afford to do nothing. Within the period of four weeks mentioned in the TRANSIT letter, you must either have transferred your domain to a new provider or deleted the domain. If you don't do either of these things, your domain will be transferred for administration to our DENICdirect service, and you will have to pay the corresponding charges in accordance with DENIC's current price list.