supportPdfFiller.com review: I would like a reimbursement

I just discover a monthly charge of $20 starting on December 21, 2021, till yesterday July 19, 2023, for a total of $400, and I have no recollection of signing or using this service, I did find emails coming from Sarah from pdf filler with promos offering me discounts that at my understanding confirm that I don't have an existing account with the company.

so I called customer service, explain what happened and the representative told me that he can refund only 6 of the 20 months, and I found this unacceptable, he agreed that I did not use the service so I ask him to escalate this problem with a supervisor or manager, and he did now I'm waiting for a response from the supervisor.

note: the representative was really nice and listen to everything I have to say, then after checking that I did not use it confirm a initial 6 month reimbursement.

[protected]@gmail.com is the email use on the account.