ReelShort Still Charging After Subscription Cancellation

I have a problem with my weekly ReelShort subscription. I cancelled my VIP membership about 18 days ago, but despite this, ReelShort is still taking money from my bank card. In my profile it even shows that my VIP ended 18 days ago, yet payments continue and I can see a recent pending charge for this subscription. I request that all charges taken from my bank card after the date I cancelled my subscription be fully refunded, and that my subscription be completely cancelled so that no further payments are taken. I also ask for written confirmation that the subscription has been terminated and all incorrect charges have been reversed.