We've had one Visa 17 years, I paid a big chunk down couple months ago, they dropped the limit immediately after the payment, a tactic I'm hearing more and more about. Very short notice, I didn't get the written notice in the mail til a good 10 days later, by then, my husband was on the road and had used it, we got dinged a late fee, I explained, cajoled, protested they'd given us so little notice, 17 years of good history, to no effect. They refused to credit back the late fee. Not a big dollar amount but sure ticked me off. Then Sears called telling me I was late, I do most of my stuff online, jumped on to my account, told him I'd made the payment, he explained I'd made two payments in the previous billing cycle so the current one was overdue by ONE day. After we figured out they'd changed the billing cycle, our long and very good payment history, my unloading on the unfortunate guy, he at least did credit the late fee back. It is so frustrating to be treated like a scumbag by these credit companies that hold all the cards, because as has been mentioned, one needs some credit cards for a good rating. Not too little, not too much. My vet and his wife never have maintained credit cards with any type of balance, he was floored when he found out their credit score was lower because of that.