I tried to undertake a variety of transactions over the telephone in one day from a Santander account, including making a payment onto a Natwest credit card and my co-op mortgage, but after the first transaction I was told I couldn't make anymore transactions. Even though I passed all the security checks I was treated as suspicious and told I could not do anything else without going into a branch in a different town from where I live. In order to force me to make this trip into the branch to show them some photo ID, my attempts since to transfer my ISA and accounts have also been blocked. Any attempts to speak to a manager about this have been blocked and my complaints have been routinely dismissed. I will never bank with Santander again.