When it seems your payment method was accidentally deleted, this article explains how to retrieve them.
NOTE: Whether or not you can view, edit and add your own payment methods, is defined by your company's policy.
1. Go to Profile.
2. Go to Personal Settings.
3. Go to Payment methods page.
4. Click All active payment methods.
5. Select All payment methods.
6. Open the payment method you were looking for.
7. Check the checkbox to Activate the payment method and don't forget to save.