Certainly! Here is a revised and polished version of your email:
I am writing to express my concern about a perfume I purchased today for £109. Upon opening it at home, I noticed that the bottle was leaking and, most importantly, the scent was different from what I expected. I believe the perfume might be counterfeit.
I returned to the store to address this issue with the staff, but they refused to exchange the product, citing the absence of a manager. This situation is troubling, and I am concerned that the store might inadvertently be selling counterfeit perfumes.