Billing - Refund my account

I'm being charged on my checking account things I don't think I ordered. The dates are as follows:

3/31 9.99

4/14 1.99

4/12 4.99

9.99

4/18 14.98

4/23 26.96

This is a total of over $70. (exactly $70.89). I don't remember any of these charges. Please refund my account as soon as possible. Also if these are subscription please cancel them.

I have a EMC 3574, 8th Gen model.

Please let me know as soon as possible. I can't afford these charges.