I showed bank statements of around £20000 in total in my own account and my father's account. I also Included a sponsorship certificate affidavit of support from my father which tells that he will be financing my studies.
After I was granted the visa I thought it would be better if I open an bank account with an international card to make transactions during my stay in UK easier because my previous account didn't have an international card. I required £5000 to do that so I transferred £5000 to my father's account in another bank to open a new joint account of me and my father.
Will having less funds in the accounts I showed money from cause any problems at airport and with UK immigration officers?
Would I be fine If transfer those £5000 back to my accounts and bring latest bank statements with me to airport which shows the proof they were only sent to my new account and after that I sent them back in case they have a doubt that I no longer have enough funds?