30 Second Smile Not refunding my money for refused / returned items, no receipts, no email confirmations bad service Van Nuys, California

In summary, I ordered two toothbrushes with two whitening kits.  After i ordered, i got very concerned that i never rec'd confirmation or an invoice.  To this day i still have not - i was charged $214 for these two toothbrushes - i 'guesstimated' approx $125-$130 for the total as i chose to pay in one payment.  Being concerned, i began researching the company and discovered all the bad reviews with same complaint (wish i had done this before i ordered!).  I then emailed and called several times over several days to customer service to cancel my order altogether.  They stated they could not find my order yet my account (to keep calling back in 24-48 hours) had already been charged! The packages did arrive on two separate days and i took immediately to the post office refusing and return to sender.  I ordered in beginning of march and by Mar 16 had returned both packages.  I have been requesting and demanding my full refund since and they indicate that they have not received my returns.  What kind of business can't track returns?  They have a full money back guarantee if not satisfied?  All i want is to receive my refund and never deal with this company again!