Refund please !!!

My son had spoken so well about this app that I purchased it under "family sharing iOS feature", but the developer has billed me for this purchase while my son had already paid for it last year. I didnt expect this from you.
I would re-write my review if refunded. Please Refund !!!!!

H-Bajwa2015 about Symptom Tracker by TracknShare, v6.4.3