Refund is only available when the goal rank is not achieved at the end of the package. (Please note that the rank should be the time-period average rank, such as a one-month average or three-month average). In any case, the value corresponding to the ranking achieved during this period will always be deducted from the total received.
I have worked with many other SEO services. Most of them just disappointed me. A few even made my website ranking worse! Your super service is far better than anyone else! The results prove it!