I got a $37 this morning bill I wasn’t sure what was that for

The link works for me: See or cancel your subscriptions - Apple Support

Following is an excerpt from that link with instructions on how to cancel from an iPhone:

How to see or cancel subscriptions on your iPhone, iPad, or iPod touch

1. Open the Settings app. 
2. Tap your name. 
3. Tap Subscriptions. (If you don't see "Subscriptions," tap "iTunes & App Store" instead. Then tap your Apple ID, tap View Apple ID, sign in, scroll down to Subscriptions, and tap Subscriptions.)
4. 
   
5. 
6. Tap the subscription that you want to manage. Don't see the subscription that you're looking for?
7. Tap Cancel Subscription. If you don’t see Cancel Subscription, the subscription is already canceled and won't renew.

Repeating my original reply:

See the following instructions. They include information on contacting Apple Support if the other steps don't help: If you see "apple.com/bill" or an unfamiliar charge on your statement - Apple Support

If the only indication of the charges is from an email or text, be aware that it may be a phishing attempt to get you to log in to a site that appears to be Apple and divulge your password or credit card information. See: Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

and Identify legitimate emails from the App Store or iTunes Store - Apple Support

First -- read the following and verify that it is a real charge and not a scam:

If the only indication of the charges is from an email or text, be aware that it may be a phishing attempt to get you to log in to a site that appears to be Apple and divulge your password or credit card information. See: Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

and Identify legitimate emails from the App Store or iTunes Store - Apple Support

Second -- if it does appear to be a real charge based on the above or based on the fact that you see an actual charge on your credit card or other payment method, follow all 5 steps in the following, including contacting Apple if the other steps don't help: If you see "apple.com/bill" or an unfamiliar charge on your statement - Apple Support

I'm not sure what you mean by either of your two replies. Are you able to click on the following link and use the instructions there? If you see "apple.com/bill" or an unfamiliar charge on your statement - Apple Support

You have to apply for a refund as well, no refunds are guaranteed,

You would see something in your purchase history for $37, but you don't

I would contact Apple Support as they might be able to help yo further

Contact Support

See the following instructions. They include information on contacting Apple Support if the other steps don't help: If you see "apple.com/bill" or an unfamiliar charge on your statement - Apple Support

If the only indication of the charges is from an email or text, be aware that it may be a phishing attempt to get you to log in to a site that appears to be Apple and divulge your password or credit card information. See: Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

and Identify legitimate emails from the App Store or iTunes Store - Apple Support