How many cards are there in 7 days?

Seven days hotel has two kinds of cards:

1; A free card, as its name implies, is a card that costs nothing. Room number of each branch * 15. For example, if a store has 100 rooms, it must get100 *15 =1500 free cards every month. Therefore, in case of seven-day full-time sales, you can fill in your mobile phone number and ID number.

2; Charge cards are not allowed to apply for free cards at the front desk of any branch in principle. At present, there are two kinds of recharge cards for seven days: 1] 58 yuan, which is directly upgraded to a silver card, and two electronic vouchers are sent to 20 yuan. 2] 128 yuan, upgrade to a gold card directly, and get a 40 yuan and two electronic coupons from 20 yuan.