(our) customers根据原文可知，96％的客户推荐网上银行的服务。因此，填入(our) customers。

Let’ s say something first about our online banking service. There are some great reasons why you should start online banking today. You can manage your money when it suits you—24 hours a day, seven days a week.  For instance, you can move money from one of your accounts to another.  Also, you can pay your bills without leaving your accommodation, even while you watch TV!  In addition, you can send money to people—family and friends. If you want to make a payment to a non-UK bank account, you can do it online—but there are charges for this service. As well as all this, our great service is very safe.  It’ s very difficult for anyone to steal from your account. So, online banking is the answer—96 percent of our customers recommend our service. It’ s quick, easy and safe. OK, Kathy, what about mobile banking?