santa barbara bank scaming trying to makw me pay for a loan i never took out. san diego, California

Santa barbara bank is accusing me of recieving $4700 in 2003 tax return they claim the irs never paid them for so they are trying to take my 2012 tax return for reinbursment. The problem with this is i file taxes every year why after almost ten years this is coming up, secondly my tax return in 2003 was $970 sent to me through the mail i am debt free when it comes to the IRS and i dont know where this bogus outrageous amount is coming from but i am not paying for sonething i did not do. Then i come to this site and see all the many many claims against them i am going to fight this times are to hard to have a bank just take your money because they feel they have the power to do so the devil is a liar!!!!