Banks in Quanzhou can increase the scale of deposits and loans by increasing sales promotion, expanding marketing channels and launching preferential activities, as follows:

1. Intensify promotion: Banks can enhance brand awareness and attract more customers to do deposit and loan business by increasing advertising.

2. Expand marketing channels: Banks can establish more marketing channels, such as outlets, ATMs, mobile banking, etc., to improve the convenience and satisfaction of customers and attract more customers to conduct deposit and loan business.

3. Offer preferential activities: Banks can offer some attractive preferential activities, such as interest rate concessions, points rebates, gifts, etc. , to attract customers to deposit and loan business.