got financed as high risk when i am low risk

<p> I bought a car using wesbank finance last week not knowing my credit score, i was told i am high risk payer which i did not understand because i have never skipped a payment and i dont have credit problems. they offered me 17.45% interest rate on my car finance and because i was un aware of these things i just accepted. Today i got access to my credit score because this whole ordeal did not sit well with me and when i check every payment is up to date, no arears and i am listed as low risk payer and my credit scrore is 756 (good). I feel like i was taken for a ride because i had no clue how this credit score thing works. my interest rate is as high as a persons who does not pay thier accounts and i am really dissapointed in wesbank as i really felt that it was the best financing bank that has everyones interest at heart.</p>