If you have several credit cards and carry balances on more than one, it is important to stay proactive and pay attention to each card limit. Lowered credit limit on a card with balance increases the credit utilization rate and often makes credit score go down. If two or three issuers have your credit card limits lowered, the scores will likely go down quite significantly.
Who is the most vulnerable to such a scenario? Credit card holders who transfer balances at 0% percent interest on two or three cards and set up monthly automatic payments. And with banks lowering credit card limits, it is easy to suddenly discover your utilization rate is too high and credit score went down 50 or more points.
Check credit card limit often
Every time you login into the account, look at it carefully.