Markham Iphone 12 ****

I bought an refurbished white Iphone 12 from Markham Jubilee Mall for my younger brother then it needed a software update within warranty, I took it back to the store to be assisted ,after days of doing follow up, for assistance.The phone was in a perfect working condition ,as it only needed an update. They took my phone to weFix ,which gave a report that my phone have traces of liquid damage ,therefore it voided my warranty . Firstly I am disappointed with the way Markham handled my matter , with arrogance ,inconsideration and poor communication. The store and Wefix they gave me a quote for a phone under warranty , and now they shifting the blame , by claiming traces of liquid damage which was never the issue. The phone was in the care of the store, when I handed it over it was an a perfect condition, because they were able to log in my icloud account .