Unwanted subscription

Hey, im writing this because i don’t know what to do anymore. Three months ago i bought a linkvertise premium subscription for only 2$ for 2 days, i forgot about it, they took 10$ from me, but i said fuck it i’ll just cancel the subscription and they won’t bill me again lol. how wrong was i? alot. every fucking month they take money from me EVEN WHEN I CANCEL THE SUBSCRIPTION IT FUCKING REACTIVATES BY ITSELF AGAIN, i wrote three fucking emails to them because i didn’t know what to do and guess what?

„ Sorry, we can’t give you a refund but you won’t be billed by us again :D”

Guess what! :D Next month i get fucking billed again. Another email but no response this time, so i let it slide again, but this month? no way, when i did my monthly routine (canceling the subscription because it got reactivated by itself AGAIN)

I GOT FUCKING BILLED TWO TIMES IN ONE FUCKING MONTH

im out of words.. pls helpme i dont know what to do.