BFM Maxnaim Unauthorized credit charges and unwanted watch shipped Glendale, California

Was offered a watch as reward or promotion (don't recall which) for the cost of shipping ($5.99). Watch was received and shipping was charged to credit card.

Next month a charge of $98 appeared on the credit card statement. I called Maxnaim to complain and was told that I had signed up to receive merchandise unless I returned watch within 14 days of original date. I had not entered into any such agreement.

Next month a charge of $49 appeared on the credit card and a SECOND watch was shipped.