I want to delete my old account.

Question

Hi, like I mentioned in the title I want to delete my old accounts. Since I don't have any access to old ones. There is no way I can take them back. If any authorisation is required I may try to fullfill the requst.
My name is "Rıdvan Kadakçı" and the links of my old accounts are here linked
https://www.sololearn.com/Profile/2018520