Give my Money BACK

I am truly disappointed in the lack of communication from Headspace. I downloaded the app a few weeks ago to do a trial period and before I could receive the trial I had to provide my banking details (fair enough). I did not enjoy the app as much as I liked anyway and deleted it. On Sunday 10 May I woke up with the notification from my bank that a large sum of money had been deducted from my account. First of all I never received a notification that my trial would end soon and if I wish to cancel I could do so. I am currently unemployed due to the Covid-19 outbreak and what little I had in my account to survive has been taken. I have sent numerous emails to get my refund and I have not received any response or even an apology. I would really like to have my money back seen as I'm not even using the damn app!