Pure Health Discounts Over charging - no response either by phone or e mail does not appear Internet

I wanted to order some 35% food grade hyrdogen perxiode and Pure Discount was the first to come up.  I reviewed their web page, placed and order.  However, it stated it would not go through.  Considering I probably did not enter my numbers correctly, I did it again.  Still the same message the charge would not go through.  I checked my bank account, only to find on that the company had charged me three separate charges all on the same day I had tried to place one order.I have telephoned numerous times and emailed and have not heard one word.  I have asked my bank to dispute these charges and have not heard if they were able to assist.How do people run businesses like this.  They are taking advantage.  Brenda (((REDACTED))) @gmail.com