Hi. This is not an issue related to the iPhone per se, but I am wondering if there's a way to block a particular phone number on it. My wife keeps getting a call from this guy asking for John to pay rents, electric bills, etc. I have called him twice and told him he's got the wrong number. He has promised to delete the number , but he's apparently got a memory problem. I just spoke with an AT&T Wireless representative. He says the only options are to (1) change her wireless number, or (2) buy their smart something option for $4.99 a month to block up to 15 phone numbers. Both are out of the question. Is there any way 'round this? Any help would be appreciated. TIA!