Check what subscriptions you are paying for on your Apple account. How to check? It is a little involved to get to it. On your iPhone go to Settings – click on your Name – iTunes & App Stores – click on your Apple ID – on the pop up choose View Apple ID – subscriptions. Then you can see each active subscription and if you want to cancel one then click on it and choose cancel subscription button down the bottom. Back where you chose the subscriptions button, the Purchase history was the next option in case you want to look at what you have bought.
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