If the bill is handled by stages, the longest period can be 24. Bill installment can be used from the second day after the bill date to the last repayment date. The minimum application amount is 500 yuan RMB, and the maximum application amount does not exceed 90% of the total RMB consumption in the bill (excluding cash withdrawal, installment payment and other transactions stipulated by CCB). Three, six, 12, 18 and 24 installments can be selected, and the corresponding benchmark rates are 0.75%, 0.70%, 0.60% and 0.62% respectively (note: monthly handling fee = total installment amount * handling fee rate, which will be charged on schedule on each billing day after installment. For example, if the bill costs 8,000 yuan, it needs to be returned to 800 yuan before the current bill expires, and the remaining 7,200 yuan can be paid in installments. If it is divided into 24 periods, each period only needs to be repaid: 7200 ÷ 24+7200× 0.62% = 300+44.64 = 344.64 yuan.