I do tend to be fairly closed-minded about self-styled prophets and fortune-tellers.
1) The prophet/ess concerned is someone who puts their whole trust and whole life in Jesus The Christ and walks intimately by and with His Spirit. As is commonly my experience, I suspect they are one of the more reliable sorts who are of low earthly status but high heavenly status being a watchman on the wall quietly but powerfully.
2) I tend to be close minded toward people's perspectives who are close minded, narrow, rigid, etc. about I Cor 12 and 14.
3) Calling such a servant of The Most High God a forturne teller is not likely to please HIM.