人在德国申请去英国的签证

我已经在网上填好表格，付完钱，后来worldbrigde写信说：You must now book your appointment on-line, in order to submit your application. You must do this by following the ✀BOOK YOUR ON-LINE APPOINTMENT HERE✀ link, shown below. When your appointment has been booked, you must take your printed application, supporting documents and the appropriate fee (unless paid on-line with this application) to the address shown below on the agreed date and time of your appointment. Your application will not be accepted at any other location. Failure to submit documents to the address shown below will result in a delay and/or lead to the refusal of your application.不知道现在该怎么办怎样在网上约时间签证