Does frequent payments on cc bills affect anything? E.g. credit score

Don't think so. Paying in full before it's due is the best to retain good credit score (other bank loans-e.g. housing/renovation matters too). I don't think advance payment/paying upon spent does anything (probably just help u not forget to pay-not use the $$ for other purposes only). So far i paid last 10years, upon receiving cc statement always pay before due, score = AA (best). Dun have AAA one la.

Cheers.

No~ as long as you dont late payment~

If you want, every month theres a billing date, which shows you what you need to pay before deadline.

Like mine is every 15th of the month, i always pay up everything on 14th, so most of my credit history are always $0 debt~