Youth account

I have opened a youth account for my daughter in June and have submitted all required documents. After a few days the account was frozen and I resend the declaration form and proof of residence, but still no change. I have went to the branch on the 23rd October 2020 to and the consultant told me that I cannot use the Bankmed statement as proof of residence which I was not told before. I provided a different proof of residence and was going to unfrozen in 2-3 working days. Still account is frozen and no one is saying anything. I am highly disappointed by the service.