Unauthorised charge to my debit card

Hello Nicholas,
Let me clarify it for you. The charge was for AVG TuneUp - Unlimited trial automatic renewal on 2018.7.7. This order was placed because you agreed to automatic extensions of your Subscription Period when you originally placed an order for AVG TuneUp - Unlimited trial. We can assure you that we have not processed any unauthorized payments from your card or account.
We sent an email notification 10 days prior to the order being placed to let you know in advance that this payment was due. This also contained information on how to cancel your Subscription.
You have AVG TuneUp - Unlimited, valid until 2019.7.10. You can install AVG PC TuneUp for your Windows computers and AVG Cleaner Pro for your Android phones.
Regards,
Alok.

Hello Nicholas,
Let me clarify it for you. The charge was for AVG TuneUp - Unlimited trial automatic renewal on 2018.7.7. This order was placed because you agreed to automatic extensions of your Subscription Period when you originally placed an order for AVG TuneUp - Unlimited trial. We can assure you that we have not processed any unauthorized payments from your card or account.
We sent an email notification 10 days prior to the order being placed to let you know in advance that this payment was due. This also contained information on how to cancel your Subscription.
You have AVG TuneUp - Unlimited, valid until 2019.7.10. You can install AVG PC TuneUp for your Windows computers and AVG Cleaner Pro for your Android phones.
Regards,
Alok.

I have been charged $54.99 NZ$ on my debit card for an upgrade on my mobile which I did not request. I have been using the free AVG app with ads and elected to continue using it free with ads. The payments is to Dri Avg Tech and was on 10 July. How Avg even got my debit card info I don't know, perhaps because their app has full access to my phone security?