Texting And Calling Problems

[droid252]

I got the Motorola Droid last year and I have been experiancing messaging problems. If I text something to a certain person, someone else on my contact list will get the message or even someone who's number I deleted hours ago. Also when I talk on the phone, people have been telling me they can't hear me very well. No matter how high I turn the "in call volume" up they still can't hear me. I thought this was going to be a good phone but I'm starting to think it was a waste of money. Any help would be greatly appreciated.