Hey there, and welcome to Apple Support Communities siaa256,
We can certainly understand your concern and can help provide some insight.
We recommend checking out this these steps for more information on how to block contacts and see if that matches up with your procedures
" Block a phone number, contact, or email
There are a few ways that you can block phone numbers, contacts, and emails.
Phone
From the Phone app, tap Recents, then tap the Info button next to the phone number or contact that you want to block. Scroll down, then tap Block this Caller.
FaceTime
From the FaceTime app, tap the Info button next to the phone number, contact, or email address that you want to block. Scroll down, then tap Block this Caller.
Messages
From the Messages app, open the conversation, tap the contact at the top of the conversation. Tap the info button, scroll down, then tap Block this Caller.
Mail
From the Mail app, open the email that has the contact that you want to block, then tap the contact at the top. Tap Block this Contact.
You can also add a phone number or email address directly to your Blocked Contacts list in the Settings app.
- Add the number or email address that you want to block to your Contacts.
- For phone numbers, go to Settings > Phone > Blocked Contacts > Add New. For email addresses, go to Settings > Mail > Blocked > Add New.
- Select the contact that you want to block.
When you block a phone number or contact, they can still leave a voicemail, but you won't get a notification. Messages that are sent or received won't be delivered. Also, the contact won't get a notification that the call or message was blocked. When you block an email address from Mail, it goes to the trash folder. Email blocking works across all your Apple devices. "
For additional information, check out this link: Block phone numbers, contacts, and emails on your iPhone or iPad - Apple Support
These steps will help ensure your device is working with ease and can fix common issues like the ones you’re experiencing.
Kindest regards!