Please find more details regarding deleting Skype accounts here;
Hi, Hedayatwini, and welcome to the Community,
Please note: To remove (delete) a Skype Account, you must contact Skype Customer Service directly. We here in the Community cannot process account-related service requests.
Online Safety Tips: Do not accept contact invitations from anyone whom you do not know, and change your passwords regularly and often.
Do you have a Skype trick up your sleeve? Share your Solutions and Tips with us!
please check the answers and link provided above.