To make reserver messages to sender does not support replies

Why are you texting your friend's crush? If you're already friends, then that would explain why they return your texts. If not, then they might like you; you should probably...

Delete the Facebook App, too. Reinstall both and log in. if you're on an iPhone, go to settings and find Messenger. You can turn notifications off so you still get...

Have the sender send to someone else. If they can, it is likely the receiver. Have someone else send a fax to the receiver; if they receive it, it is...

Yes, especially if the title is normally used in his mailing address.

You can email them and let them know, or contact them in some other way. If you don't inform them, they probably won't know. You just won't receive anything they...

It may be a prank, a glitch or sometimes someone confirming your bank account is real. It could be so done trying to steal your money and see if your...

Talk to them in person to see what's going on. Also consider the possibility that their phone is broken or battery is flat.

The user either blocked you (which you can tell if you cannot follow the user's account) or disabled the sending of direct messages (DMs).

Even if that were true -- it's not -- you still have a good option: obscure your address on the envelope, obscure any barcode printed on the envelope or inside...

Yes, but the payment for upload and for download can be different. Check your and their internet plans when you do this.