4.6. Methods of removal foreigners Foreigners, to be removed from the territory of the Republic of Moldova, can be removed by the following methods:     Voluntary execution of the return decision; Assisted voluntary return, Removal under escort, Removal based on readmission agreements. 4.7. Voluntary execution of the return decision In the case of certain categories of aliens, the return decisions are granted a period within which they are obliged to leave the territory of the Republic of Moldova:  15 days  foreigners whose visas were cancelled;  whose stay became illegal;  former asylum seeker;  formers applicants of stateless statute;  foreigners whose stateless statute was cancelled.  30 days  foreigners whose right of stay was cancelled or revoked;  foreigners who have been denied the right to stay;  foreigners requesting a return decision before being found in an illegal residence situation;  3 months  foreigners who have to liquidate an investment; The indicated deadlines are calculated from the date on which the foreigner was notified of the return decision. At the request of the foreigner, in duly justified situations, taking into account the specific circumstances of each case, such as the length of legal stay, the existence of children attending school and the existence of other family ties, the time limit may be extended by up to 30 days. The decision on the extension of the term for leaving the territory of the Republic of Moldova or on the refusal to extend this term shall be communicated in writing to the foreigner. The refusal decision can be appealed in court within 5 working days from the date of communication. 38