ABslide Charges to bank card ..have they really changed their ways?

I ordered an ABslide last spring. It was sent promptly and my bank account was properly billed in May. I had declined particpation in their plan for a diet supplement. However, I still received four jars of their Herbal Energizer but was not billed until September when my bank acc't. was charge 49.50. I hadn't been reviewing my statement regularly because of health problems. I did not note this charge until I was reviewing my December statement and saw a charge in the same amount in that month. I visited the ABslide web site and reported my problem to the company. They promptly made a credit to my bank for these charges. So apparently they have changed their ways. However, I shall watch my bank statement carefully from now on and only use my debit card when I know the company.