I have got 4 year tax refund back from hmrc but santander as blocked my account they want proof of where the money came from. When they can see it i have given them all the evidence from hmrc and even went to the bank to prove my identity. But my account still blocked. Now im thinking its something else. Maybe to do with my name as the person on the phone called me black Black black few time and in person at the bank the lady had a problem cause I'm a bus driver. I have ask them if they want anything else just to contact hmrc and they will tell them that the payment is for sad sad sad sad