I'm being billed the wrong amount, 35 cents a minute. I'm grandfathered in at 10 cents a minute for both of my prepaid phones.

I'm a very long term ATT Prepaid client, probably more than 40 years. I have 2 phones and they both have been on the 10 Cents a minute plan since it was first offered many years ago.  On 9/30/22, ATT eliminated my long standing balance of $600 + ($300+ on each phone) which accrued when I had to buy minimum minutes every 90 days.  Obviously, my wife & I are not big phone users, and our unused balance kept growing. Finally, ATT told us we no longer had to buy minutes. Instead, they would draw down charges from the balances. And as of 9/30/22, each phone still had just over $300 to draw against.  Earlier in the year, I had asked for a refund of both balances.  I was told 'no', then yes, we will write you a check, which never came, & finally another no.

So, our phones were turned off as of 10/1/22!!  I went to my local  ATT store & the manager helped me to select a 90 day plan for each phone. I reminded him that both phones were on the 10 Cents a minute plan & I wanted that to continue.  He confirmed that the account showed the 10 cents a minute plan as being active on both phones.  I believe he showed me the confirmation on his computer screen.  My credit card was  charged for the pre-purchase.  However, ATT has been charging me at 35 cents a minute!   First my $600 was made to disappear, & now ATT is nickel & dimeing me with this new erroneous charge.  I want all the overcharges on both phones credited back to my credit card.