u/Ian3435

I want to use points to refund about $700 in travel, but I didn’t do it before I paid that statement. Now my statement balance is around $100 and might not even reach $700 before my next payment. Will my statement go negative and will that negative balance carry over? Will I be charged anything for not paying a minimum amount if I have autopay sent? I would normal just call them and ask but I’m out of the country so a call will be expensive and the online chat bot is the most useless thing I have ever encountered. Thanks.