No, our Support agents cannot delete your account. Please click here to know how to delete your account.
Note that all your data will be lost after 7 days and you won't have the option of retrieving it if you don't export it.
https://support.withings.com/hc/en-us/sections/11350199505297-Account
https://support.withings.com/hc/en-us/sections/11410064438161-Account