Coinbase complaint: Financial Chargeback

I was wrongly advised that I had two financial Coinbase crypto purchases through my bank account where I received crypto credit but Coinbase was never paid. One was for $103.56 on October 12th and the other was for $100.57. Both of these “per Coinbase”. I showed Coinbase over and over that I had one transaction in October for the $103.56 and that my bank account was over charged $156.82. I sent a photo showing it came from my account and it was the same date as the $103.56 charge. Not only did my bank account get charged for the one transaction, I was overcharged. No one has responded after I have threatened to go to litigation over this. Coinbase ultimately took back my crypto for both of their accused transactions claiming I never paid. Not true! I am also owed the difference of the $103.56 and the amount withdrawn from my bank of $156.82 on October 12th from the October 11th transaction. I am requesting both transaction repayments be returned immediately plus the $53.26 difference in my bank overcharge to Coinbase. This is theft and it’s illegal. I do have litigation pending on two other issues and will add this if not rectified immediately.