Pronunciation issues

Hi. I was checking a PC Game for learning Japanese vocabulary, which seems quite interesting, but while watching a review of it とけい came up and it was pronounced as to-ke-i, instead of to-ke-e, which is how I have always understood it's pronounced. I went to a couple of online dictionaries with audio pronunciation, and found that in one of them it's pronounced to-ke-i (here) and in another it's pronounced to-ke-e (here) So I'd like to know if both are correct or one of them is mistaken.

Apparently the "ei" pronunciation is more common in some regions (I have a feeling like "ee" was a Tokyo thing originally but not sure), and people also tend to do "ei" over "ee" if they're carefully sounding things out - which someone reading out words off a list for a dictionary or learning game might.

どうもありがとう for the answer