Hello Aminoox1,
We would like to see how we can help you with your missing Voice Memos. Have you already checked your recently deleted folder? Check out this link for more information: Edit or delete a recording in Voice Memos on iPhone - Apple Support
"Recover or erase a deleted recording
- Tap the Recently Deleted folder, then tap the recording you want to recover or erase.
- Do any of the following:
- Recover the selected recording: Tap Recover.
- Recover everything in the Recently Deleted folder: Tap Edit above the Recently Deleted list, then tap Recover All.
- Delete everything in the Recently Deleted folder: Tap Edit above the Recently Deleted list, then tap Delete All."
If you are unable to find the recording there, further assistance may be needed. We want to make sure you reach the right team for help with your Voice Memo, so we recommend that you contact Apple Support directly. Depending on your region, you may be able to reach them here: Get Support - Apple
Cheers!