Wells Fargo Bank Account Or Service Complaint

Wells Fargo Bank account or service department,

Checking account Problems caused by my funds being low Colorado

I recently linked my Wells Fargo account to my - account and then had a transaction that I did n't not have enough funds for in my - account get submitted as an instant payment from my Wells Fargo account. I had no idea that adding my Bank account to my - would automatically set the Bank account as a backup funding source for my - account and so Wells Fargo then Charged me - non-sufficient funds fees in the amount of - $ and the original transactions that they never even paid were for a - $ trasaction and abother for A - $ TRANSACTION. I called and spoke to - and they sent me a letter to send over to wells fargo explaining the situation to hopefully have the NSF fees removed off the account but Wells Fargo would n't accept the email I tried to send to them and would n't even speak to me about the fee 's over the phone at all so I now already paid the transactions that I did n't even know were going to be charged to my bank and now have a - $ bill for Wells Fargo because they choose to charge me - $ for less than a - $ transaction that they never even paid is there any way to fight this I still have the email letter from - regarding the incident as well if that helps at all! Please let me know thanks!