"free Apple" Watches scam

I purchased a new phone in October of 2024.  I was offered 2 "free" Apple Watches.  I told the salesman that I did not want them if there was any cost involved.  He told me that there would not be.  I believed him and took the watches.  (He was also a new employee). We do auto pay and have not checked monthly to see if the billing is correct because we trust this company that we have been with for 30 years! We are also Diamond Members which apparently means nothing! So, as of now we have been charged $300 for our "free" watches that have NEVER been used!  We want our money back.  This is terrible the way Xfinity treats their customers.  This same thing happened when we found our years later that we had been paying for a landline that we never knew that we had.  It was very well hidden in the bill when we checked.  That was thousands of dollars that we lost.  Found out we had a phone number for it (but were NEVER told)!  We didn't even recognize the number when we looked back.  Please contact me ASAP with a real agent so that we can get this resolved!!!!!!!!  Feeling furious.