You should not have to provide bank statements for the Visa. I would recommend contacting the E-Visa system team : https://www.evisa.gov.tr/en/feedback/
If needed and you have paid money to a scam website contact your card issuer to advise of the fraud,.
I have been to Turkey ~15 times. In the past you have been able to purchase at airport however it is now possible to do online as said before. Just visit this website https://www.evisa.gov.tr/en enter in some personal info and its added to your passport so can waltz through arrivals when you...