The advantage of the combination jobs is that they are much more regular than other jobs and the tasks are the same. The job offers for these jobs have a higher priority and will be shown more often and also you will have higher chances to be booked for them. You will be able to work regularly in the same company and at the same location.
However, if after a certain period of time you realize that you no longer want to receive a certain type of job, simply reject it in the app.
If you have any further questions on this topic, click Submit a Request.