2. Where no time limits or other rules regulating the timely provision of documents have been established, public sector bodies shall process the request and shall deliver the documents for re-use to the applicant or, if a licence is needed, finalise the licence offer to the applicant as soon as possible, and in any event within 20 working days of receipt. That time frame may be extended by a further 20 working days in the case of extensive or complex requests. In such cases, the applicant shall be notified as soon as possible, and in any event within three weeks of the initial request, that more time is needed to process the request and the reasons why.