Why are we being prevented from buying over $10,000 in series-I bonds a year (online). History: I have used gov't bonds (now series-I) as my savings-account (for emergency use, etc. after keeping on deposit the required months). We used to get paper bonds (for grandchildren as well as ourselves) but now we are prevented for doing that. I think a couple years ago, the limit was $30,000 per year (which didn't make sense since the gov't seems to need the money). I tried to deposit over $10,000 this year installments and were told that if I continued, they would close my account. Why? Al, Kingston, N.Y.